A Warning : Project Manager is Dangerous
Do not trust Project Manager in Premier to Archive Projects.
It misses critcial clips even if you do everything correctly.
If you do use it make sure you open up the final project and test the video
it won't give errors so you need to check the whole video. It also wont always show a sequence where the missing one is you need to check element by element its not worth the risk.
Hopefully nobody else has to suffer the hours i've wasted trying to figure out what I did wrong only to realise its buggy.
You have been warned.
Premier 2020 v14.1