It runs fine, but slow because of low VM specs, but try with convertconfig.ini set options and autorstart =1.
I built it just fine a few days ago, got 29641.1000.260729-1515.rs_flight_server_x64fre_ru-ru.iso It was with AutoStart=1, I'll check with AutoStart=0 edit: no issues with the AutoStart=0, I'm on 28000.2704 host OS this is with the 29641.1000_amd64_ru-ru_multi_62eb4764 UUP set
No, he doesn't want to. What is most interesting is that the script processes all the builds that were before this release, and this 29641 is in failure. Now I'll try to run it on WinPE and on a virtual machine.
Autostrat=0 also works: I accidentally removed the previous gif with the autostart=1 test but the picture shows it working
Strange things are happening. On my laptop on build 26300, the script refuses to work. It works on a desktop computer on 26300. I reinstalled it on my laptop to 28000 and everything went fine. Thank you for your time.