Hmm. That's really weird. I too have had some junctions do it and not so that's why I thought it was related to them being triggered.
On the route where they work, does this issue get triggered once you edit the session on the fly?
I'm thinking there might be something else that's causing the problem, although there's not much we can do about it.
None of what I've tested have been edited, WIP I'm only working on in 100464 and importing into the Beta, Healesville which is affected here is built in so not messed with.
I've even deleted all non builtin Pro Track / dependencies and reinstalled, no difference.
Also noticed here that it's taking a long time for assets to fully load properly without being blurred, may be as I had to put the Beta on a spinner, although TRS19 100464 is working well on the same type of Drive in my number 2 PC. With all the extra stuff that comes with Plus, it won't fit on a 240GB SSD which is all I had spare. Going to kill off one of my TANE installs or rather back it up first, that's on a 500GB Samsung move the Beta to that see if that makes any difference.