VFO B opens w/o asking?

WA8Y Steven
 

Operating 20m SSB this morning.  VFO B opens without asking?  I close it and it opens again and again?  Using Flex 6600, SmartSDR v2.3.9.112, DXLab (split is NOT selected on Commander v13.7.0 ).
Closing DXLab stops this.

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