sorry for answering so late, but now I found the time to test Version 3.1.18. This version made a lot of steps further.
My Canon was equipped with a zoom lens 24-105 mm an a fixed lens with 300 mm an no Camera contacts.
The Canon RP connects to my PC. BYE shows the correct data in the 'Camera Information Center (EOS-RP)'. When I change the Camera from P to M, to B the Data are correct. Also the Opening of the lens 4 to 8. If I use a Lens without contacts to the camera, the opening is not shown in the Infocenter, that's OK.
When I choose 'Frame and Focus' in BYE the PC shows in BYE the Camera-signal/Picture and calculates a FWHM. (I tested indoors, so I had no star)
When I chose Imaging, I can set up a Program of Pictures, but when I start Imaging the Protocol says:
Imaging session Started
Imaging Session cancelled.
Make shure the Camera is set to Manual, turn Dial to 'M'
I do so, but when I restart the Imaging session the pictures are taken in 1/125 sec, even when I say Bulb with 30 seconds of time. The 1/125 is taken from the Camera in M-Mode. The ISO-Sensitivity is correctly changed apropriate to the Data in the Imaging-Session..
To give you a maximum of Info, I 'zipped' all my logfiles.