I ran into this error while creating custom chords for myself using twiddler tuner. I wasn't able to find any reference to this limit in the twiddler docs, and I couldn't find anything about it in the forum. A general Google search didn't find anything either. Is this a hard limit, or do I have something misconfigured on my tuner account? Or is it something else entirely?
If it helps, I have Experimental Features turned off, and Direct Key Mode disabled.