• もしあれば、画面に表示されたエラーメッセージをコピー&ペーストしてください

I'd say this is a bug based on attempt to repro since it first happened, but there isn't an appropriate "What happened" choice.
I had accidentally flipped to other player's board when attempting to scroll (on phone). I thought I saw a little flicker, but didn't think much of it. We are playing turn based over days and I didn't notice as other player's board is very similar.
I took a legal action based on incorrect state, then the magically a filled in cell wasn't because UI swapped back to my player board.

While attempting to repro on desktop, when clicking on card pair I see the board is flipped by to my player board.
Attempting to repro on phone again, I mostly cannot. First time I got an error bar. I think it said unsupported action. The next I was flipped to my player board. When then swapping to another's board before selecting cell there are not enabled cells to fill (as desired).

• 何をしたいか、何をしたか、何が起きたかを説明してください

• あなたのブラウザは何ですか?

• あなたの言語の代わりに、表示されている英語の文章をコピー&ペーストしてください。 このバグのスクリーンショットをお持ちの場合は、お好みの画像ホスティングサービス(例えば、 snipboard.io　など）をご利用し、コピー&ペーストしたリンクをここに書き込んでください。 このテキストは翻訳ページで翻訳可能になっていますか?もしそうならば、24時間以上前に翻訳されていますか?

I'd say this is a bug based on attempt to repro since it first happened, but there isn't an appropriate "What happened" choice.
I had accidentally flipped to other player's board when attempting to scroll (on phone). I thought I saw a little flicker, but didn't think much of it. We are playing turn based over days and I didn't notice as other player's board is very similar.
I took a legal action based on incorrect state, then the magically a filled in cell wasn't because UI swapped back to my player board.

While attempting to repro on desktop, when clicking on card pair I see the board is flipped by to my player board.
Attempting to repro on phone again, I mostly cannot. First time I got an error bar. I think it said unsupported action. The next I was flipped to my player board. When then swapping to another's board before selecting cell there are not enabled cells to fill (as desired).

• あなたのブラウザは何ですか?

• 何を意味するのか、簡単に理解できるようにあなたの提案を正確かつ簡潔に説明してください。

I'd say this is a bug based on attempt to repro since it first happened, but there isn't an appropriate "What happened" choice.
I had accidentally flipped to other player's board when attempting to scroll (on phone). I thought I saw a little flicker, but didn't think much of it. We are playing turn based over days and I didn't notice as other player's board is very similar.
I took a legal action based on incorrect state, then the magically a filled in cell wasn't because UI swapped back to my player board.

While attempting to repro on desktop, when clicking on card pair I see the board is flipped by to my player board.
Attempting to repro on phone again, I mostly cannot. First time I got an error bar. I think it said unsupported action. The next I was flipped to my player board. When then swapping to another's board before selecting cell there are not enabled cells to fill (as desired).

• あなたのブラウザは何ですか?

• ブロックされたときの表示は何でしたか(空のスクリーン?一部のみのゲームインターフェイス?エラーメッセージ?)

I'd say this is a bug based on attempt to repro since it first happened, but there isn't an appropriate "What happened" choice.
I had accidentally flipped to other player's board when attempting to scroll (on phone). I thought I saw a little flicker, but didn't think much of it. We are playing turn based over days and I didn't notice as other player's board is very similar.
I took a legal action based on incorrect state, then the magically a filled in cell wasn't because UI swapped back to my player board.

While attempting to repro on desktop, when clicking on card pair I see the board is flipped by to my player board.
Attempting to repro on phone again, I mostly cannot. First time I got an error bar. I think it said unsupported action. The next I was flipped to my player board. When then swapping to another's board before selecting cell there are not enabled cells to fill (as desired).

• あなたのブラウザは何ですか?

• BGAで正しく実装されていないルールはどの部分ですか?

I'd say this is a bug based on attempt to repro since it first happened, but there isn't an appropriate "What happened" choice.
I had accidentally flipped to other player's board when attempting to scroll (on phone). I thought I saw a little flicker, but didn't think much of it. We are playing turn based over days and I didn't notice as other player's board is very similar.
I took a legal action based on incorrect state, then the magically a filled in cell wasn't because UI swapped back to my player board.

While attempting to repro on desktop, when clicking on card pair I see the board is flipped by to my player board.
Attempting to repro on phone again, I mostly cannot. First time I got an error bar. I think it said unsupported action. The next I was flipped to my player board. When then swapping to another's board before selecting cell there are not enabled cells to fill (as desired).

• ルールの間違いはゲームのリプレイで確認できますか?そうであれば、行動番号は何番ですか?

• あなたのブラウザは何ですか?

• やりたかったゲームアクションは何ですか?

I'd say this is a bug based on attempt to repro since it first happened, but there isn't an appropriate "What happened" choice.
I had accidentally flipped to other player's board when attempting to scroll (on phone). I thought I saw a little flicker, but didn't think much of it. We are playing turn based over days and I didn't notice as other player's board is very similar.
I took a legal action based on incorrect state, then the magically a filled in cell wasn't because UI swapped back to my player board.

While attempting to repro on desktop, when clicking on card pair I see the board is flipped by to my player board.
Attempting to repro on phone again, I mostly cannot. First time I got an error bar. I think it said unsupported action. The next I was flipped to my player board. When then swapping to another's board before selecting cell there are not enabled cells to fill (as desired).

• このゲームアクションを引き起こす為に何を試みましたか?

• これを行おうとしたときに何が起こりましたか?(エラーメッセージ、ステータスバーメッセージ、他)

• あなたのブラウザは何ですか?

• どの段階でこの問題が起こりましたか?(画面の指示はどうなっていましたか)

I'd say this is a bug based on attempt to repro since it first happened, but there isn't an appropriate "What happened" choice.
I had accidentally flipped to other player's board when attempting to scroll (on phone). I thought I saw a little flicker, but didn't think much of it. We are playing turn based over days and I didn't notice as other player's board is very similar.
I took a legal action based on incorrect state, then the magically a filled in cell wasn't because UI swapped back to my player board.

While attempting to repro on desktop, when clicking on card pair I see the board is flipped by to my player board.
Attempting to repro on phone again, I mostly cannot. First time I got an error bar. I think it said unsupported action. The next I was flipped to my player board. When then swapping to another's board before selecting cell there are not enabled cells to fill (as desired).

• ゲームアクションを行おうとしたとき、何が起こりましたか?(エラーメッセージ、ステータスバーメッセージ、他)

• あなたのブラウザは何ですか?

• 表示の問題を説明してください このバグのスクリーンショットをお持ちの場合は、お好みの画像ホスティングサービス(例えば、 snipboard.io　など）をご利用し、コピー&ペーストしたリンクをここに書き込んでください。

I'd say this is a bug based on attempt to repro since it first happened, but there isn't an appropriate "What happened" choice.
I had accidentally flipped to other player's board when attempting to scroll (on phone). I thought I saw a little flicker, but didn't think much of it. We are playing turn based over days and I didn't notice as other player's board is very similar.
I took a legal action based on incorrect state, then the magically a filled in cell wasn't because UI swapped back to my player board.

While attempting to repro on desktop, when clicking on card pair I see the board is flipped by to my player board.
Attempting to repro on phone again, I mostly cannot. First time I got an error bar. I think it said unsupported action. The next I was flipped to my player board. When then swapping to another's board before selecting cell there are not enabled cells to fill (as desired).

• あなたのブラウザは何ですか?

• あなたの言語の代わりに、表示されている英語の文章をコピー&ペーストしてください。 このバグのスクリーンショットをお持ちの場合は、お好みの画像ホスティングサービス(例えば、 snipboard.io　など）をご利用し、コピー&ペーストしたリンクをここに書き込んでください。 このテキストは翻訳ページで翻訳可能になっていますか?もしそうならば、24時間以上前に翻訳されていますか?

I'd say this is a bug based on attempt to repro since it first happened, but there isn't an appropriate "What happened" choice.
I had accidentally flipped to other player's board when attempting to scroll (on phone). I thought I saw a little flicker, but didn't think much of it. We are playing turn based over days and I didn't notice as other player's board is very similar.
I took a legal action based on incorrect state, then the magically a filled in cell wasn't because UI swapped back to my player board.

While attempting to repro on desktop, when clicking on card pair I see the board is flipped by to my player board.
Attempting to repro on phone again, I mostly cannot. First time I got an error bar. I think it said unsupported action. The next I was flipped to my player board. When then swapping to another's board before selecting cell there are not enabled cells to fill (as desired).

• あなたのブラウザは何ですか?

• 何を意味するのか、簡単に理解できるようにあなたの提案を正確かつ簡潔に説明してください。

I'd say this is a bug based on attempt to repro since it first happened, but there isn't an appropriate "What happened" choice.
I had accidentally flipped to other player's board when attempting to scroll (on phone). I thought I saw a little flicker, but didn't think much of it. We are playing turn based over days and I didn't notice as other player's board is very similar.
I took a legal action based on incorrect state, then the magically a filled in cell wasn't because UI swapped back to my player board.

While attempting to repro on desktop, when clicking on card pair I see the board is flipped by to my player board.
Attempting to repro on phone again, I mostly cannot. First time I got an error bar. I think it said unsupported action. The next I was flipped to my player board. When then swapping to another's board before selecting cell there are not enabled cells to fill (as desired).

• あなたのブラウザは何ですか?