Could be permissioning. Some things you could try out:
1. Check the All Users group specifically There's a known behavior where the homepage set on the All Users group takes precedence over settings in custom permission groups. Go to Settings ā Permission Groups ā All Users ā Additional tab, and make sure the Workspace Homepage there is also pointing to your new app and not the old one.
2. Clear your cache bc Retool remembers last visited app per user
3. To ensure users are routed to the Retool home page or a workspace, you need to add an event handler on the login page. you specify / as the path, Retool routes the user to the home page, or if they have a workspace set for their permission group, to their workspace app. If your External App login page has a hardcoded redirect to the old app's path rather than /, it'll bypass the permission group setting entirely.
Hey @Tess_Blom welcome to the Community!!
Thank you @jrdata for chiming in! @Tess_Blom have you had a chance to try any of these out? Let us know if you're still running into issues and happy to dig in further!