There were some last minute changes to internal symbols just before beta4 release. I have made amendments to address the issue. Could you download again but you will need to uninstall v5b4 first and then re-install the amended v5b4.
Hi Andrew. The uninstall is just the software, not the data. So you won’t lose anything. If you want reassurance, you can make a copy of the EasyslidesData folder in your Documents folder first before uninstalling the software.