That's not a JBridge issue its a Waves SHELL issue or a PG - Waves shell issue. I've never been able to get Waves "Waveshell" (64 or 32 bit ) to work in BIAB either.
So I just breakout all the DLL's like all other "normal" VST mfg's (i.e., "like normal folk) , see how to here
https://www.kvraudio.com/forum/viewtopic.php?t=158714Then just call up the dll's you want like any other.
Basically download shell2vst unzip, copy the two executable's into the "c:\programs files (x86)\waves" folder (and if concerned make a copy of that folder - call it "waves-copy")
1. If you don'tt want 32-bit Waves VST's then just go to next step (2) to get just teh 64-bit ones. Now drag the "WaveShell2-VST 9.91.dll" onto the "shell2vst.exe" and it will breakout all the 32 bit dll's then copy those .dlls' to wherever you keep your 32-bit VST's (do that before next step becasue next step overwrites the 32-bit with teh 64 bit ones). if you don;t want 32 bit VST's then just go to next step
2. Now drag "WaveShell2-VST 9.91_x64.dll" onto "shell2vst64.exe" and it will breakout all the 64 bit dll's
all these broke-out .dll's, will be created in a folder called "waves" where you are at, which would be a new "waves" folder under "c:\programs files (x86)\waves"]
Larry
EDIT
FORGOT in Win 10 - you'll need to set both "shell2vst.exe" and "shell2vst64.exe" to run as Administrator, in win 7 it works without having to set those (right click on the .exe and select Properties, then select Compatibility tab then at bottom select the "Run This Program as Administrator"