Hi @APARTASIUK
UPDATE Great news the pre-release version is out EpicGames/UnrealEngine at 5.0 (github.com)
Unfortunately, Epic has decided to call [ue5-main version] to be version UE 5.1.
Basically, this has messed up many peoples projects as they cannot be read and converted.
There has been much discussion but Epic say that prior projects are not compatible, like UE 4.27 is not compatible with UE5 EA or UE5 main.
UE 5.1 in GitHub ue5-main and backwards compatibility with 5.0
The nearest potential working is believed to be UE4.26 works on UE5 EA and will convert to UE 5.0
It’s a shame but that’s the way it is