Healbot stopped showing nameplates?

Any help is appreciated. Ive been using HB for years and never had an issue like this. The HB interface does not show the names of myself or party members any longer. The interface is there and I am able to choose the options button (which does come up and I can change options as normal) but nothing else. Mousing over and attempting to cast where the target name should be has no effect. Cache cleared. Loaded a few times with it disabled and then reloaded. Still no change.

I have had several addons (Shadowed unitframes, Tidy plates, Skada, Deadly boss mod) stopped working or going absolutely bananas last week, I don't know whats going on, stuff like skada and recount dissapearing sometimes is all fine and DBM not working without combat clear logg thingy but that wasent the case. So I donnu whats going on atm.