Black screen/ reset resolution when restarting in open core

[zhenya8987]

Hi! I can't find the problem.
When restarting the PC, the screen may be black in open core, but if you click on the arrows and select the OS, the download takes place. Sometimes open core is loaded in the normal 2k resolution. Sometimes, when turned on, the bios logo becomes very stretched.
Can you tell me what the problem might be?

 

[zhenya8987]

Could there be a problem? I am attaching my Open core 1.04 file, where the problem is observed

 

[zhenya8987]

For example, in this config, everything works fine. What's the difference?

 

[EliteMacx86]

The difference is that you do not have added the DefaultBackgroundColor in the first EFI.