I have now used LiveSystemPro MergePE because the new Acronis script is available there.
Unfortunately, the script also does not work during creation and displays errors.
I was able to fix the errors by correcting the following line:
RegWrite,HKLM,0x1,PE-Software\%wow64Reg%Acronis\TrueImage,standard,%standard%
to
RegWrite,HKLM,0x1,PE-Software\%wow64Reg%\Acronis\TrueImage,standard,%standard%
Also, a file was missing in the wim of SysWow.
I then copied the file manually.
Now the script ran through and in the finished live system TrueImage 2021 started and an image could also be created.
But when restoring the image TrueImage crashes without error message.
But the created image seems to be ok, because it could be written back with an older LiveSytem.
Any Ideas ?