What you were expecting to happen, and what actually happened:
What to expect: player is able to match gems and cast spells to finish battle
What actually happened: battle mechanics stop functioning, player cannot match gems or cast any spells. Still can chat or whatever except finishing the battle. I had to retreat or restart the game.
How often does this happen? When did it begin happening?
First time seeing this bug. I think there’s someone that met the same bug like me (they posted in this topic [Investigating] Game crash - #4 by Lady_Alfhild)
You can attach any videos to your post - but it’s only helpful if it shows what happens before the game board locks, a video of a locked board doesn’t more than a screenshot would.
Also, when exactly did the board lock? What was the last action you took in-game?
That other thread references there are numerous issues at the moment that can trigger a board lock.. for example troops transformed with Lycanthropy.
I don’t have a habit to record my gameplay, so it only shows what happened after the bug, but I think it’s still helpful to clarify what the bug affects.
Why don’t I see the button to upload video directly in post menu? Or did you mean attaching the video link?
The last action before the bug happened was that I used Essence of Evil as I remembered.