“Invalid project files” on Cubase that won’t load fully

Hi there, have you ever had a project that just got too full of audio to fully load up,? Perhaps you tried a newer / bigger version of Cubase and the project then loaded up fine on it? Perhaps a new pc with more memory helped too? Very sure the data is ‘nt corrupted as all other projects load up fine on same external hard drive? Really appreciate your help here. Thanks also to Jay at born to produce for recommending me to come here , Marcus :notes: