The ramoval of molten plastic advanced circuits seem to cause an issue with Ribbonia.

This also happens if i turn on Dynamic recipe creation in molten plastics settings.

Advanced circuits no longer require plastic in K2SO. Instead, the plastic is used in electronic components, which is a separate recipe and an ingredient for advanced circuits. My Tweaks mod removes the incorrect molten plastic recipe and adds an electronic-components-molten-plastic recipe instead.
I think my mod is handling this correctly. So I'm not going to change anything here.
The bug can be fixed by Ribbonia until Molten-Plastic offers full K2SO support.
Thanks for reporting this, but I can’t help here.

Molten plastic and Ribbonia is is the same guy, ill talk to them and see.

Just hopping in to confirm this needs to be fixed from my side and will take a while as K2 compat is a bit of work!

Yeah. Thanks for your great work.