Dynamic Link not updating properly

Hi there. I hope y'all are ending a good year.

Here's the thing.
Win 10 2H2,  12 cores, 64GB RAM, all updated, working perfectly.  Premiere Pro, Media Encoder and After Effects, all 24.0.3 Build 2;
I have several Premiere Pro projects (different products, same campaign), each containing around 20 linked AE compositions. Dynamic Link works flawlessly: I can go to "edit original", and switch back and forth, seeing the changes in Premiere instantly. It plays back reasonably well, considering the ton of effects and layers.
BUT
When I send the sequence to AME for rendering, some of the compositions of some of the projects (let's say 3 comps out of 45), will render a previous version, not reflecting the latest changes nor the viewport in Premiere nor After Effects.
What do I know?
- Nothing's rendered, all is on RAM.
- I purge RAM and Adobe Media Cache, both RAM and disk, before rendering.
- I can see perfectly well the latest changes all around, even in the AME preview.
- Renders aren't using more than 40% of the installed capacity of the computer.

Additionally, sometimes (around 10%), AME just stops rendering, it's not dead, it's still using resources, the computer does not freeze, it simply stops advancing. I can reset the state and restart the rendering and it will work most of the times.

Are any of you guys having the same problem?