Feeding shapes into the Corner Stacker does nothing, the shapes get consumed but there is no output.
How to reproduce:
Place Extractor Platform
Place Extractor
Place Corner Stacker
Feed one line into the second layer
Feed one line into the first layer
Place output belt
No shapes gets output-ed on the belt
(Might be related to this topic, I have not managed to prove it yet, but i was playing with Corner Stacker and was unable to delete the space platform
https://discord.com/channels/1000343719314198548/1348305226809212938)