Sorry to hear that @marcoangelo. Have you tried working with support to find the issue?
It’s worth noting that this isn’t an issue everyone is experiencing so it’s likely something specific to your instance.
“created a new gallery for each photo rather than combining them” I think we have seen this a few times in the past, and yes as Scott noted, it likely indicates some kind of server or permissions issue that is specific to your hosting. You’re welcome to reach out to support, and we may be able to suggest a few things to check.
