I dont know why, as i use a couple other mods, though none that would interfere here (mostly py) but i cant make T crossings or edges. as soon as i disable flow on one side at a t crossing, it autoconnects 2 sides and the other is empty, despite there being a pipe with the same fluid.
edges also dont connect for whatever reason.

here is an example https://imgur.com/a/GGZI7OL

I can't seem to reproduce this issue, can you confirm that the pipes that you're expecting the pipes to connect to aren't closed in that direction?

i.e. in response to your examples: https://imgur.com/a/DEDtyqQ

thats unfortunate. yes, all other sides are open to everything (no x). in case you want to look into it further, here is my save game (uploaded it for someone else to check on a bug): https://easyupload.io/wma9qg

Perfect thank you I'll take a look in a bit!

Aha, seems like the bug is due to incompatibility with the No Pipes Touching mod. That mod works by filtering connections to the same pipe prototype, which conflicts with this mod adding multiple prototypes for the same pipe type. Looking into a fix now.

edit: nvm, i tested it now without the no touching pipes mod and it works without it. i couldve sworn i had the same (or maybe similar) issue before but i guess i have been wrong.

so, if you can get it running with the other mod thatd be awesome, if not, its fine as well i guess. would just have to decide on which one to use. (although the pipe weaving is really practical for compact designs :/)

anyway, thanks for looking into it!

This should be fixed with the latest update! The UI will sometimes incorrectly say flow is blocked towards a pipe of another type with a different fluid, since the connection category isn't accessible at runtime, but that shouldn't actually block you from doing anything, and I've made a note to try and fix that in a future update.

awesome. im gonna download and try it out in a couple of hours. will let you know if it works :)