Hi. Just chiming in to confirm the issue. I have a brand new M4 iPad Pro. Very few music apps launch. I've reinstalled the beta and non beta versions of ipadOS with no difference. Logic and some Korg apps and a few others will launch, but 90%+ do not. Moreover, some apps would launch after a wipe and reinstall whereas before they wouldn’t. In fact the first few apps launched after a reinstall will open and function, but by the 3rd or 4th app launch, the behavior described in earlier posts would occur. After that, nothing music related worked. Restarts of the iPad did not help.