Hello,
I have the same issue with game stuck at Spawn Objects, I don't get the issue when I use the 2 default aircraft (su25 &p51) but i get it when starting a mission with Mirage F1 ou F14
tried to add the autoexec.cfg, didn't fix it
tried repair build, cleanup didn't fix it
installed latest DCS update (2.9.12.53360)
installed latest nvidia driver (572.16)
dcs.log