Making efi from Big Sur ==> Catalina

I have working great Big Sur.

But I need back to Catalina.

Current efi (Big Sur) dont boot usb-stick with Catalina.
Big Sur booting without any problems.

Why? What difference?

What needs to be changed in config?

The situation is very important to me.

Help me, plz, bro!

OpenCore 0.70
HP Probook 4740s
CPU: i7-3632QM
RAM: 16 Gb
Graphics: Intel HD4000, 1600 x 900
Audio: IDT 92HD87B2/4

submitted by /u/adminstig
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