Loss of functionality in Filemaker Pro after using Filemaker Go
I posted yesterday asking how to select multiple values from a dropdown in Go in the same way that one can in Pro. I answered that question myself and got it working very satisfactorily in Go, even working out a script to get around the manually tricky steps.
However, when I returned to Pro I found that I couldn't any longer use cmd click to select multiple values even though the equivalent technique was working in Go. The files are identical (Go was using the Filemaker Network to serve the file) and the multiple values I input in Go are still there and new ones are added perfectly by Go and passed to Pro. But the whole functionality has gone awol from Pro: I even created a new file from scratch and the characteristics are the same -- Go can add them, Pro can't. I tried files that have never been near Go and they don't work either.
I've relaunched Pro and rebooted the machine without effect.