iPhoneX footage not working in PremierePro CC2019

Footage from my iPhoneX is unusable since I upgraded to cc2019. When I playback, audio & video runs out of sync and the video starts glitching and in the middle of the video it skips to the beginning of the file while audio is still runnig without skipping. This only occurs on IOS 12 files recorded with the native iPhone app, with FilmicPro I have no problems at all. Older files I recorded on my iPhoneX with IOS11 have no issues at all.

I got two Windows 10 PC's with the latest Nvida drivers, now on both the same problem. On the older PC I did the upgrade to CC2019 yesterday and before I did the upgrade, the iPhoneX IOS12 files worked without any issues.