Replacing creature causes game freeze [Investigating]

Elektrophorus

Situation:

• I am playing Elspeth
• I have Aryel and a Soldier token from Elspeth's first ability
• There are two white and one black activation gem from Aryel on board
• There is one green exert gem from the Soldier token

Trigger:

• I use Elspeth's 3rd ability to destroy 2 activated gems
• One of the gems activated is a white gem, one is the exert gem

What happened:

• The green gem's effect triggered properly and destroyed the enemy's first creature
• Then, the white gem's effect appeared on screen
• I clicked the confirm button to replace one of my creatures with the Dominaria's Knight token (I chose the Soldier token)
• After that, the Soldier token disappeared, but no Knight token appeared
• The gems did not fall down
• No "loading" swirl
• I could still open my hand
• I could open the bottom menu, battle log, and the quit menu

Tombstone

Thank you for passing this information along. I will relay this information to the team for review. 

Laeuftbeidir

Tombstone said:

Thank you for passing this information along. I will relay this information to the team for review. 

This should already be known, by the way.

I've had it happen twice for me alone yesterday : it can always happen when you replace a creature, be it from casting a creature, spawning a token (via ability, card effect, exert), or stealing an enemy creature.

Sometimes, you can still access your hand and everything apart from matching gems, sometimes there is a red spinning wheel and you can't do anything

Mburn7

A similar bug happened to me today, also with elspeth.  I tried to replace one of my creatures with her soldier tokens out (note:  I was not replacing the soldiers) and got an immediate freeze.

bk1234

[MOD NOTE] Updated title to add [Investigating].

Laeuftbeidir

The bug is still alive!

stikxs

Playing H2 in today's Golgari Rising Tensions, 1st creature = Zacama, 2nd creature = vampire token from Queen's Commission, 3rd creature = saproling from Spore Swarm. Cast Gather the Pack and get a Ghalta in hand that gets cost reduction from creatures to free cast, game asks which creature I want to replace, I pick vampires, box goes away, nothing happens on the board, the game stops progressing, and I can't do anything besides open the menu and view log (which did not show Ghalta being cast as expected) or quit.

10/10 A+

Mburn7

+1

Just got a freeze on Rising Tensions because I tried to replace one of Elspeth's Soldier tokens.

Igemon

+1

Already got 2 freezes in EC trying to replace a creature

Stormcrow

Gotten a couple freezes this way myself lately.