Missing vegetation created via PCG on export

If you compare this 2 automation tests done on Swiss chalet project, you could see that some parts of vegetation are missing :

[Link Removed]

[Link Removed]

The diff between the 2 exports is caused by a pause test action during 5 seconds added before the first export in LPV rendering mode.

So, if you wait 5 seconds before starting export, you will loose less vegetation.

By the way, when you open the project you could see the vegetation be created during startup.

Note : The vegetation is created via PCG tool.

Project is available here : //Twinmotion/Automation-Content/Twinmotion Projects/Complex Scenes/Swiss Chalet/

Waiting 10 seconds before first export seems to fix the issue