PE 15 and 2018 appear broken as of Windows 10 v1709
Windows 10 push of v1709 a few days ago breaks PE. No transport, unable to play standard MTS and MP4, missing codec errors. This is with PE projects that worked prior to the upgrade. Reverting Windows back to v1703 resolves the issue.
Tested and verified on four different systems by 2 different users.
Windows is very insistent about this upgrade - it can be deferred for a little while only.
Adobe needs to address this as high priority, ASAP
