Okay so there is this topic about random crashes: [Combined] I am crashing and I don't know why but your experience seems to not fit that. However there are crashes linked to using certain abilities (mostly magic) and certain boss moves/attacks.
When you are describing the possibility of the ice magic crashing the game for you, do you mean that still in tandem with you opening your inventory? If not, I’d like merge this into the topic I linked 
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Thanks in addition to all the information, the team will appreciate that!
Silas