Wiping out the MMC drive did resolve the issue.
I attempted to utilize Windows DISKPART cmd and CMD to delete the extra ‘debian’, or any other ‘debian’ boot options:
How to delete duplicate bootloader from dual-boot setup?
In summa, attempt such steps within Windows CMD that is executed as “Run as Administrator”
diskpart
DISKPART>list disk
....
DISKPART>sel disk 0
DISKPART>list vol
....
DISKPART>sel vol 3
DISKPART>assign letter=G:
After this, I had to close the CMD window and reopen (or just exit from DISKPART)
> cd /d g:
>dir /B
If you find efi folder then change directory to:
>cd /d efi
If needed, delete the directory:
>rmdir /S ubuntu
This is a rough outline of what is required to delete an extra boot option via Windows OS terminal.