More info on this, I removed the ReadPSF module and project function now works properly. Re-installing ReadPSF causes the same failure to save a project with error message as above. Obviously some incompatibility of the Read PSF process. I do like to use this module to get an estimate of PSF for use with the Deconvolution process. Is there a way to fix this so will be able to install the Read PSF module and still be able to save projects?
Steve