After installing freeway pro 6.1 on a new computer and opening a website file for the first time in this version, I made a small text change and uploaded the side. Everything went fine until I saved the file for the first time in 6.1. After that I can’t upload, preview or publish anymore. I get the message: can’t read the picture because the file format is wrong (translated from Dutch)… Anybody?
When you opened the file for the first time with a new version of FW then there will be a copy saved for you. Look for something like myfile[FW5].freeway.
But before that try Edit>Resources>Resample All before you try to save it.