Reproduction steps: 1. Play Catharsis Bloom close to an impassable terrain. KF Hill with 4 fonts is a good choice to check it as it has a lot of walls and chasms. 2. Patiently wait. 3. If the game ends up choosing an impassable spot, the relic will fail to replicate itself and you'll have to wait again. Note that this most likely affects Head of Osarius as well as any other relic that may end up replicating itself in the future. Suggested fix: make the replicate ability ignore impassable spots. @Sokolov
Same with Nublin's surprise pies. If they choose to get spawned in an impassable terrain, they don't spawn at all.
This is still an issue. @Sokolov Is there a way for the game to exclude impassable spots when declaring the location for the bloom/head of osarius/surprise pies to spawn via their respective abilities / spells?