Found the mistake on my side. I already had installed release version of the app (same bundle id). Deleting release one did the trick, now I can debug NSE as expected. pluginkit and this SO answer helped

Any updates / solutions on this?

Depends on what you're trying to achieve. If you want to start the page from scratch (or just clean up the list) - then as stated above you can't. But if you need to prepare a different version submission - all textfields seem to be editable when in "Prepare for Submission" state. So you can replace your build, rename the version etc, so basically overwrite the whole page.

Hey, what's the definite answer then? Were you able to wrap .dylib in .framework in .xcframework and go through submission?

Hey, if I'm reading this thread right, the original setup was .dylib wrapped in .framework. How about support for multiple archs (specifically simulator)? I've seen other people on SO and here trying out .dylib -> .framework -> .xcframework setup, but then I never saw them go through appstore submission. Is the above setup valid, do you know? There are mentions about invalidity of .dylib on iOS in creating-a-multi-platform-binary-framework-bundle, but I'm not sure if that applies also if it's wrapped in .framework first. Btw I experimentally verified that .dylib -> .xcframework works locally, but since it was a POC, I wasn't able to try out submission to appstore. Thank you