Casting an instant spell bugs out Alva temple menu in maps

Exact issue: casting an instant spell with Alva's temple menu open (with the next room visible and ready to enter) does not close the menu (as non-instant spells do), but bugs out Alva instead: clicking "Enter Incursion" afterwards does nothing. If I close the menu and open it again, don't press any instant spells, then I can enter as intended.

Reproduction steps:
1. get Alva in maps (e.g. scarab)
2. talk to her to see the next temple room
3. press any instant spell (tried with convocation, phase run, molten shell)
4. click on "Enter Incursion"

Expected behaviour: "Enter Incursion" should work as intended after pressing an instant spell.