App freezes

Ever since 2.5.1 and now 2.5.2, app gets stuck on "Loading project..." The only way to get out of this is to close and restart, only to have it freeze again. Developer asks for offending file (for which there is none as the app wont even open let alone save) and then no longer replies to help.

TriedTo about ShotPro, v2.5.2