Yes, I have also been having this issue recently.
As a workaround, I have two DCS shortcut icons on my desktop, one for VR with the target set to:
"C:\Program Files\Eagle Dynamics\DCS World\bin-mt\DCS.exe" --force_enable_VR
and one for 2D:
"C:\Program Files\Eagle Dynamics\DCS World\bin-mt\DCS.exe" --force_disable_VR