EHSI when exported to viewport has transparent background, any tweak to make it opaque?

[Mnemonic]

As described in topic.

EHSI exports without background (or on transparent background), is there a way to fix it somewhere in LUA to make it export in black square?

Left and Right MFDs export with a black square on background, as they should.

Thanks in advance for any suggestion!

Edited May 5, 2024 by Mnemonic

[Im_TheSaint]

can you share how you are exporting it? i forgot what the viewport name was