Tell Adobe of your problem, we are just users.
When Premiere is acting weird.
Start Premiere while holding down shift+alt until welcome screen.
Then clean Media cash database.
Same problem with me. Even if I shorten a warp stabilsed clip the entire clip has to be re-rendered making it almost impossible to edit on. Very poor from Adobe not to have fixed this yet.
See this thread. We are not alone CC loses links to render files
Come on Adobe!