I've been through this rabbit hole so let me give you a thorough answer.
Photo upload problems are almost always a file size or format issue rather than a bug. JPEG under 5MB tends to work everywhere.
Things that have genuinely helped me work through issues like this:
- Check your app version first — many 'bugs' are fixed in newer releases
- Clear the cache before assuming something is broken
- Check phone-level permissions, not just in-app settings
- Uninstall and reinstall as a last resort, but back up your matches first
Currently using Souldate as my main go-to and it's been reliable. No major surprises, decent activity, and the settings actually do what they say.
Hopefully that saves you some frustration.