Ice Cave requests an incorrect mana amount to counter a spell on the stack

[supergirl-type00]

What is the expected behaviour of the card?
-Ice Cave requests W to counter Path to Exile

What is the actual behaviour of the card?
-the card requests an unusual (unpayable) amount of mana, such as 32WWWBBU1WW2.

So I realized what's happening with ice cave, once it's in play it's tracking every spell played and adding it's cost to the counter ability
For example: if the first spell after ice cave cast was path to exile you could counter it with one white mana
If the next spell cast was say wrath of God, it would cost 2 white, 2 generic and an additional white from the path of exile to counter
Eventually after a few spells are played you get ludicrous counter costs

Support Forum Thread

Forum Post: https://forums.mtgo.com/index.php?threads/ice-cave-cost-bug.704/

Screenshot
Currently Unconfirmed.

Please provide a list of affected cards
Affects: [Ice Cave]

Card Images

[supergirl-type00]

Possible deletirious interactions:

Damn with Overload
Phantom Interference paying 2 to create a token
Boromir being cast

[vorpal-buildbot]

Daybreak has labelled this bug as Backlog