On modded Wii, only Chrono Trigger will not launch

I recently updated my Wii System Menu to the latest (4.3U.) and then used hackmii to mod my Wii with Homebrew, then installed Multi-Mod Manager 13.4, d2x cIOS installer, and Priiloader.

Then I installed some WAD files onto my Wii, using a SD card.

Most of those games load and run with no issues... except Chrono Trigger. (Oh, and "1942" has the same problem.)

There isn't even an error message. When I try to run it, all i get is this animated view of a bunch of "wii" screens.
https://i.imgur.com/DXGLbdq.jpg
and then I'm kicked back out onto the wii menu.

Any time I try this, the Wii will log that 0:01 seconds of Chrono Trigger was played.

Now, some of my other games can be played from the SD card. But if I try to launch Chrono Trigger from the SD card, I do get an error message: "This channel cannot be launched on this Wii console."

I've searched in many places, and the only info i can find about this are threads from 2009 saying to update the firmware. Well, 4.3U is as high as it goes and I'm already using that.

Any ideas?