WHDLoad noMMU "bug" introduced in 18.3
 

I am running WHDLoad on UAE4All2 Vita using A1200 config (68020 + Kick 31, WHDLoad default prefs). With WHDLoad version 18.2 everything works absolutely perfect.

I decided to update to WHDLoad version 18.3 today and now none of the games work anymore.

Every game I try causes a requestor to pop up. The requestor text is completely nonsensical. It reads verbatim:
"
The option NoMMU has been activated,
but the current MMU setup does
- contains invalid descriptors
The installed program will very probably
not work with this setup!
Try to use a different 68040/60.library
"

What does "- contains invalid descriptors" mean? Why does it talk about 68040/60.library when I don't even have it? The emulated 68020 doesn't even have an MMU.

If I dismiss the window by clicking "ignore," WHDLoad shows a black screen and hangs. This happens for every game I tried.

None of the various MMU and cache options seems to fix this.

Is there anywhere a file called whdload.key?

No, I checked the following locations for whdload.key:
S:
L:
DEVS:
LIBS:
PROGDIR: (the directory where WHDLoad is located)
path in environment variable KEYPATH

(In my case PROGDIR: is C:)

There's an "xadmaster.key" file in s: but no "whdload.key" anywhere.

Thank you for the response in Mantis. It was indeed an emulator bug. After I patched the emu to correctly give an invalid instruction exception on "Movec PCR,D0," it now works!