UE4.26 Saving Unbearably Slow - Processing Exports

I’ve had this problem for a while now and have no idea what’s causing it. I’ve tried migrating to a new project, moving to a new map and even deleting everything from the map.

Saving is taking upwards of 20 minutes sometimes on a map with less than 20 objects. So far I’ve watched most of Oblivion waiting for it to save a very simple map. I’ve also tested this on multiple computers.

What is Processing Exports??

I have just started to have this same problem around the same time I switch to RVT mode.

I have the same problem, with the fastest SSD on the market, blocked at Processing Exposts forever

Now I have the same problem. On some maps it takes an age to save. SSD is writing only 1 Mb/s while the dialog shows Processing Exports…

Any advice would be greatly appreciated.