Dual booting into Windows only works from bios and not grub

Hi all - hope you can help and this may be a quick one!

I run a dual boot set up with Windows 11 but with Bazzite as my default boot option.

I first installed Windows one onto a clean SSD, and then installed Bazzite on a different SSD afterwards - as I heard this was the easiest approach. Bazzite runs absolutely fine and Windows also runs fine but it will not launch from grub and instead only works after I go into the bios and manually select to boot into Windows Boot Loader from there - that's the problem.

When selecting windows from grub I get this error (pictured - apologies for the quality) Afterwards, it goes back to the grub menu and I can just either boot to Bazzite or go to the bios to select Windows manually, which will then work!

I have tried regenerating grub and it does appear to detect the windows EFI correctly, but the problem persists.

Suggestions and ideas are appreciated!