When computer resumes from hibeation, BIOS is changed and causes issues, why?

The next time it happens I'll take a picture with my phone or something so I can show you the exact messages, but the basic rundown is this...

I go to tu my laptop on (it's a sager with a gen4 i7 and an nvidia... 850 I think?) and it says "resuming from hibeation". Then it gives some message about no bootable volume being found, something about a PXE network boot, and just loops through that over and over until I power it off.

So, when I powered it back on, I noticed the options at the bottom of the Sager splash screen: f2 - settings f7 - boot options. This only ever happens when UEFI is tued off. Why was UEFI tued off? I don't know, but the computer does it on its own every time it hibeates, it would seem. Of course with UEFI tued off, the UEFI Windows partition can't boot, so tuing it back on, save and exit and it boots back up just fine, until next it hibeates.

It seems to be loosely connected to unplugging hardware while it is still hibeating, like an HDMI, USB, or even it would seem a headphone cable (haven't tested to make 100% certain yet though). I swear I've recently had it happen with none such changes, but maybe my memory is failing me. So not yet sure if it's helpful/related.

Anyone have any idea what the deal could be?

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