What the heck is going on with this? Black text in dark theme dialogues

I've been running a dark theme with some transparency tweaks alongside RocketDock to keep my desktop looking clean and minimal. It's been working flawlessly for years—until now.

Out of nowhere, dark theme dialogues are showing black text on dark backgrounds, making them nearly unreadable. I haven't changed anything on my end, so I'm guessing it might be related to a recent Windows update.

I've already tried all the usual stuff—toggling themes back and forth, rebooting, messing with personalization settings—nothing helps.

Anyone else seen this or know how to fix it? Would really appreciate any ideas.