This is normal but if you install the following builds for sdr#
SDR# Dev (Continuous Integration, Last Changed Rev: 977 )
SDR# RTLSDR Plugin (Continuous Integration, Last Changed Rev: 977 )
it should go away if you select one of the options under the rtl-usb settings. Im not on my main machine but when i do get on it i will tell you what setting it is if you don't already find it yourself.
RSP 1&2*SW-2 & SPF-08*Afedri .Net v3*Airspy Mini*RTL v3*BR-330T*MD-380*UV-9D*UV-82*UV-6R*UV-5R*PL-310et*gp5-ssb*CR-1a*450D
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