LADSPA effects aren't loading GUI

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Every time I load a LADSPA effect, the GUI doesn't load. Everything else is fine, and the effects still work, but the controls dialog box is always really small and gray with nothing but basic dials. I redownloaded lmms, but I still have the same problem. Anyone know what's happening, or what to do about it?
LADSPA effects do not have GUIs. Those "basic knobs" are all you get.
But some LADSPAs do got interfaces... ooor https://github.com/LMMS/lmms/issues/75
sti2nd wrote:But some LADSPAs do got interfaces... ooor https://github.com/LMMS/lmms/issues/75
Nope, they don't. LADSPA plugins do not have GUIs. None of them. That link is entirely unrelated.