Thank you for the quick response and for providing a test project. I've replied to your email with a compatibility patch for you to test.
Viewing post in Simple Gauge Crash Error
Back again (with a positive report). As I wrote below, the patch you made had gauges ending up black (thus unseen). It may have been defaulting to the values set on MK_UI Customizers' colors (I set them all black there to hide them). Anyways... Fomar JUST sent me an updated version of its plugin. Sadly, on its own, it still didnt work. BUT! If I used BOTH your patch AND its updated plugin, NOW it works. It uses the colors Ive set in your main plugin. Maybe Ill hit a snag down the line. Who knows. But for now it works. Im grateful for that.
In case it might be of help: [LINK]