Alva blocks Soul Core placement in Jiquani's Machinarium

In Jiquani's Machinarium Alva can completely block the player from placing the soul core into the stone altar. This happens if she engages combat and moves her idle location to the front of the altar after it's done.
The player character will path to the front of the altar and attempt to insert the soul core but won't complete the action due to Alva being in the way (the insert animation does not begin at all). The player needs to reset instance (also having to find the soul core again).

Probably a super rare and harmless bug but still :)