With the Swype (Nuance) keyboard installed and active on Android Pie, the shift key on the Plugable keyboard (and probably competing physical keyboards) doesn’t work for alpha characters: all letters are rendered lower-case. Ironically and frustratingly, it works fine with like non-alpha characters (e.g., Shift+4 gets me a $).
To be the clear, the issue is with Swype interfering with the physical keyboard behavior, and Nuance is the proper support provider on this issue - but they’re not exactly responsive, so I’m posting here in hopes that you might have some idea as to how to address the issue.
Thanks in advance!