WinCC flexible compile error - stripping font

[panic mode]

hello everyone,

Got a PLC/HMI project from machine vendor. The problem is that HMI does not compile.

Both fonts are present of course but message suggest error stripping the font....

Sometimes there is additional warning about SimSun but that is just a warning...

[panic mode]

internet search revealed posts that suggest running software as different user (not admin), check front properties (must not have protected attribute). nothing worked.