https://bugs.winehq.org/show_bug.cgi?id=29188
--- Comment #12 from Roger rogerx.oss@gmail.com --- Understood.
I have been using a VirtualBox Windows XP session for providing serial communications for some proprietary radio hardware and software. (Too much to do, so little time available for bug tracing!)
With the advent of rtl-sdr devices, native linux applications are more likely, however a few developers are still developing "Windows only" applications for even rtl-sdr devices. The idea of using command line only tools and reducing CPU usage is largely catching on, due to smaller platforms.
As soon as I have my radio serial device available for testing, I'll give the latest Wine a try. FreeScan is the application I've recently been using, instead of the proprietary Uniden software. This bug was evident with both applications, using a serial to USB converter.