2025.4 - reappearance of the disappearing renders bug?

I've been using 2025.4 for the past 24 hours on a large LucidLink-hosted project, and am delighted to say that just about all the issues I had been having in previous versions of 2025.x seem fixed, and performance is much, much better all around.

However, I've noticed one problem that was common a few releases ago seems to have resurfaced - renders for rendered MOGRTs seem to 'disappear' after some time.

Details.

1. MOGRT lives on LudicLink, added to Local Templates in Graphics Templates window.

2. MOGRT added to approx 35min timeline (23.976fps, HD)

3. MOGRTs rendered throughout show, all show as green

4. Project saved

5. Green renders begin slowly turning red backwards, i.e. from the end of the timeline towards the front of the timeline, over a period of maybe an hour or less.   It doesn't matter if I'm working away in Premiere, or leave it untouched in the background, they continue to disappear.

6. Eventually, all MOGRTs in timeline show as unrendered red.   This also happens if Premiere is quit and returned to later, e.g. all is green, save and quit, shutdown system, start up next morning - all MOGRTs are red.

7. Re-rendering everything just starts the cycle again.

Expected result: once rendered, stays rendered

Actual result: renders all 'disappear' over time

Premiere 2025.4

macOS 15.5

Mac Studio M1