puft navigation bug, stopped building transport structures

https://www.youtube.com/watch?v=oC2KYwVRoTs

the materiel is already on the transport structures, it says construction assigned. but they wont build(anymore), only transport structures. and the pufts all have weird navigation paths, they move about once a day for 1 space. and lastly, the filters all say hydrogen in description.  even when it is assigned something else(no big deal).

side note, every once and a while i get "liquid/gas" piping not knowing which way to go. adding a bridge fixes the issue. maybe make a 1 square "check valve" to help the "element" figure out the path you intend.