LRC 15.5. and tether still not works with Canon R6Miii

Tethering with my Canon EOS R6 Mark III is still not working in Lightroom Classic 15.5, despite Adobe stating that the Canon tethering issue had been fixed.

In fact, the situation is now worse than it was in Lightroom Classic 15.4. With 15.4, I could at least see the camera's Live View. In 15.5, I get nothing. Lightroom can see and display my camera settings, but I cannot actually use tethering or control the camera from Lightroom.

I have already ruled out the camera and cable as the cause:

• The camera firmware is fully up to date.
• Canon EOS Utility recognizes the camera and works correctly.
• The USB tethering cable is working properly.
• The camera itself is therefore clearly communicating with the computer.

I also tried using the SDK option, but in that case Lightroom Classic does not recognize the camera at all.

So, despite the release notes indicating that the Canon tethering bug was fixed, the Canon R6 Mark III is still effectively unusable for tethered shooting in Lightroom Classic 15.5 — and compared with 15.4, the situation has actually regressed.

This is seriously affecting my work. Tethered shooting is not an optional feature for me; it is an essential part of my professional workflow. I have already spent significant time troubleshooting an issue that should have been resolved by this update.

Please investigate the R6 Mark III tethering implementation specifically and provide a real fix as soon as possible.

I would also appreciate clarification on whether the Canon R6 Mark III is officially supported for tethered shooting in Lightroom Classic 15.5, and if so, why the functionality is still broken despite the claimed fix.