My partner started building an app in version 9.24.3. I did not realize that my having version 10 would create a situation where my partner could not open the app. Now I need to move the app back to 9.24.3 and do not know how to make this happen. We are both new to Mendix.
Unfortunately, you cannot go back to a prior version. You’ll either need to abandon any work you did in 10 or your partner will need to abandon any work they did in 9.24.3 and move up to 10.