I opened up a support ticket a few days ago but the answer was the same as the posting of Line6 here: "it's up to Apple to fix this problem, we don't know how long it will last and maybe you should try the downgrade to iOS12 " - a very disappointing answer. Why didn't they sent an email beforehand like other manufacturers when a major OS-upgrade is announced: "we are not quite sure if your system will run properly and stable, so please wait until we know about this"? Really annoying and superfluous for all users - but hey - the Sonic Port is a niche product related to all other and - of course - more expensive devices they offer, I guess....