Currently you are able to build underground pipes anywhere in a Factorissimo factory building. It's not much of a problem for the factory wall tiles and entrance area, but being able to build underground pipes into the void is a bit egregious.

You also currently can't make an underground pipe connection into/out of a factory building. Factorissimo registers that there are pipes on each end of a connection point, but does not generate an underground linked pipe between them, though that's a relatively minor issue.

I won't be fixing the i/o connections issue, you can just use an aboveground pipe for that. I will look into the 'building out of bounds' issue, thanks for letting me know!

Fixed for next release

Not quite fixed yet

Failed to load mods: Unknown collision mask "out_of_map"
Source: tomwub-pipe (pipe).

Also causes the game to request flow config to be disabled

Great mod though. It's on my "why ins't this vanilla?" list

What mods are enabled?

Elevated Rails
Quality
Space Age
:)
I use a fairly large list of mods so i just disabled everything except AUP and the issue persists

I just pushed another release, did that fix it?

caught it as soon as you put it up
responded in the other thread (Game crashes at startup after last update) cuz im a dummy
and that would be a negative on the fix

Fixed in latest release