Hey, since upgrading to Solidworks 2019 SP3, we have some assemblies that take very long to load, like minutes during the "Open components". There are other assrmblies, also much bigger ones, that load very fast.

The funny thing is: I can delete all parts from the assemblies, and it still takes very long to load (more than a minute). I attached an example assembly.

We're running PDM Pro 2019 SP3, but for the affected assemblies, i can also save them locally (with virtual components or delete all components so it doesnt have any references) and it won't change anything.

Things I've tried without success

- Remove all appearances

- Set image quality in document properties to super rough

- Remove all references

- Reset all Solidworks settings to default

- Reset to default scene

- Start in Software OpenGL

- Disable all add-ins

The (even empty) assembly remains bugged. I would really like to find a fix, because we have a great number of product assemblies affected, over years, which is impossible to just discard them.

Does anyone have a clue what could be causing it?