Fix crash in Fixture monitor
Fix crash in Fixture monitor

mcallegari/qlcplus,joepadmiraal/qlcplus,kripton/qlcplus,kripton/qlcplus,bjlupo/rcva_qlcplus,interzona/qlcplus,plugz/qlcplus,sbenejam/qlcplus,kripton/qlcplus,interzona/qlcplus,interzona/qlcplus,joepadmiraal/qlcplus,joepadmiraal/qlcplus,mcallegari/qlcplus,plugz/qlcplus,kripton/qlcplus,sbenejam/qlcplus,plugz/qlcplus,joepadmiraal/qlcplus,joepadmiraal/qlcplus,sbenejam/qlcplus,plugz/qlcplus,kripton/qlcplus,bjlupo/rcva_qlcplus,nedmech/qlcplus,nedmech/qlcplus,bjlupo/rcva_qlcplus,sbenejam/qlcplus,mcallegari/qlcplus,mcallegari/qlcplus,sbenejam/qlcplus,bjlupo/rcva_qlcplus,plugz/qlcplus,peternewman/qlcplus,peternewman/qlcplus,bjlupo/rcva_qlcplus,joepadmiraal/qlcplus,interzona/qlcplus,plugz/qlcplus,sbenejam/qlcplus,plugz/qlcplus,sbenejam/qlcplus,hveld/qlcplus,hveld/qlcplus,hveld/qlcplus,nedmech/qlcplus,hveld/qlcplus,interzona/qlcplus,nedmech/qlcplus,kripton/qlcplus,peternewman/qlcplus,peternewman/qlcplus,kripton/qlcplus,nedmech/qlcplus,mcallegari/qlcplus,hveld/qlcplus,peternewman/qlcplus,interzona/qlcplus,peternewman/qlcplus,bjlupo/rcva_qlcplus,nedmech/qlcplus,mcallegari/qlcplus,mcallegari/qlcplus,hveld/qlcplus