Qubes 4.2 installation not working when SSD is moved to another identical PC

Since Qubes version 3, I have been able to install the system on an SSD and move this SSD between almost identical computers. Now, when I use version 4.2, it works fine in the same computer, but if I move the SSD to an almost identical computer, the BIOS does not recognize the boot loader on the SSD. Any suggestion how to move forward?

If you’ve installed Qubes OS with UEFI then check this:

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