CrumplePop EchoRemover 2 Interface Font?

I'm seeing boxed question marks for all the control labels (recent problem).  Anybody know how to fix this?
Running latest Big Sur on an M1 Mini, FCP and FxFactory are up-to-date.

It doesn't go away if you change a parameter? I'd drop CrumplePop a message right away. Is there anywhere that claims this plugin is M1 ready?
crumplepop.com/contact-us/

Interface doesn't change at all. I hadn't bothered to check until you asked, but when I look at the plugin details in FxFactory, it claims there aren't any compatible host apps.
I get the same weirdness if I launch FCP in Rosetta mode, and more importantly, this also happens on my Intel 2019 iMac (same up-to-dateness as the Mini). Other than the text, the plugin seems to work just fine on both systems.

EDIT: I've now sent feedback to CrumplePop

I use the same plugin on a 2015 rMBP and an iMac Pro, both latest Big Sur, no issues at all.

Good to know, thanks Ben!  I'll keep the thread updated.

Still waiting for a response (other than the automated ZenDesk email bot)

UPDATE: It was indeed a font conflict. Had a client project that used a different version of the font CrumplePop embeds in the plugin. Disabled the duplicate and all is legible.