Bug: Plus appearing on channel with single Intensity

Good afternoon, 

Finding a possible bug with plusses on a channel with a single intensity. 

Two channels are appearing with '+' signs in the intensity values on the Live Screen. I gather this indicates a different value in another intensity sub-channel. However the channel is currently patched as a single dimmer. I suspect this may be because I previously had an LED unit with multiple intensity parameters on that same channel number. (I've been moving channels around the patch). 

I'm sure this isn't a show affecting thing, but does make things slightly less neat... 

Won't attach show file, but am happy to email it to someone at ETC.

Thanks

James

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