You will laugh, but I got it to work.
Apparently with isboxer, you can run EQ full screen but with my window size, I had to edit the client so that the window size and full screen size are the same.
Then it worked correctly. And lo and behold, I have my radar again for the first time in like 3...
It does not work when it is windowed.
I wonder that is why it does not work under ISX.
I do not use ISX to box more than one very often but I primarily use it because it allows me to use my G13.
P.S. Full screen looks terrible with my near 4K monitor.
I am finding that I am crashing a lot with MQ2Rez. Half of the time the window simply terminates and sometimes I JUST crash.
Also, it used to support a delay to accept. Does it do so any more? My INI file still has the setting in it.