Thanks so much for your feedback!
Regarding only being able to upload one photo at a time, if you make sure that you’re signed into your Ribbet account from within the program version (by clicking the Profile icon up the top right of the program and then choosing Sign In) it should then allow you to upload multiple (uploading one photo at a time is a limitation of guest accounts).
With the program hanging, generally we aren’t seeing this issue. However we are releasing a new version of the program within the next week or so, which updates its core libraries to the latest versions. This will hopefully resolve your issue. The program will auto-update when the update becomes available (just follow the prompts when starting up Ribbet).
In the meantime, please let us know if you have any other feedback or questions.
Regards – The Ribbet Team