I had a similar experience. Your problem may very well be different. Mine had to do with the version in which the builder code was originally made. When I upgrade, I keep the old version with a different names somewhere outside of application folderr. To tell the truth I don’t remember whether the trick was going back to the version that the builder program was created, or being sure I was running the latest version. I think running the latest version was the trick, but I don’t remember. It might be making sure that the version that is opened is at least as new as the version the builder was written in. Again, this might be totally wrong.
Good luck.