yes this is happening often with amarian blood for example

what unlock the stucking situation usually is enemy turn

meaning i dont get action bar until an enemy move

I will randomly have this issue happen to me quite often, most often at the beginning of a turn. I have to auto-turn for my first guy up and then usually people after him will have the action bar reappear

This is happening to me when a dragon auto casts fear at the beginning of a battle.  Hitting the auto play button brings the action bar back.

Happens to me in middle of battle when Relias casts fireball.

This also has happened to me multiple times, I associated it with the pre-battle casting of fear because that is when it happened the most.  However there have been several battle where no one cast anything at the start of battle, and the first move of my first hero did not have access to the action bar.  Annoying as it wastes an action, but it usually starts happening later in the game when I'm more powerful and can win easily anyway.

Very important!  Devs, fix this with a high priority!

No action bar doesn't equate to no moves, if a character is hit by Titan's Breath.  It simply means the character can't access any objects or spells for one turn.   In the meantime they can move, and attack.

I have read the whole thread, just as you have.  And I'm sure you've read that there are people assuming this happens for a particular spell, or race--such as Amarians.  So there are comments posted here that are factually incorrect; and I was responding to these.  Not to your remarks.

For the rest, this is a bugfix beta cycle we're in.  Like you, I don't like this bug, but I would expect it to be fixed before the game is released.

Press M to open spellbook and then you can cast your spell...only decent workaraound