So my RTL-SDR v4 works fine on SDR# and SDRTrunk however I want to decode NXDN and NEXEDGE systems so I downloaded DSD+ and whenever i run FMP24 it says something like rtlsdr v4.dll is missing even though its right there in the folder. I already installed the drivers in zadig a while ago when i first got my v4 and my dongle works fine in sdrtrunk and SDR# but dsd+ says that error and I cant figure out what the problem is or how to fix it.