I came across information that this may be due to two connected monitors, and yes - this is my case.
Well, after I physically disconnected one monitor’s cable, I tried to export - and, surprisingly, it worked.
However, physically disconnecting the monitor cable seemed inconvenient.
So my second experiment was to change the settings, I tried Duplicate Desktop mode (instead of Expand Desktop mode) - and the export was also successful and very fast.
5 Likes