I have a a layout file (pagx) that refuses to open in 3.0.2, but it opens fine in 2.9.0. Not sure what version it was made in but something prior to 2.9 I think. I'm thinking it might be a bug of sorts, but since there is no information attached to the error message (only says unable to open file) I do not have that much to go on. Any ideas on how to solve this?