The glue I had in the version v0.4.1f broke when I updated my mod to version v0.5.0 and now none of my contraptions work? How I fix?

i dont think theres a good way to fix this, Old glue used tons of individual entities compared to the new one using one large entity, 0.4 -> 0.5 was a jump to a major version and this stuff has the tendency to occur in those

I had this problem too and i replaced all the glue manually, but i had only two simple contraptions.