Detect and crop black bars no longer working.

I am trying to watch 2:35:1 ultra-wide Blu-rays using SVP 4 + MPC-BE x64 + MPC Video Decoder.

I use the MPC video renderer so I can use it with Nvidia RTX HDR from the beta Nvidia app.  Super-resolution is set for everything <1440p in MPC video renderer.  I also use luma sharpen and Sharpen in post-resize shaders and post-processing via ffdshow Video Decoder, while the AviSynth filter handles the motion-estimated frame interpolation.  Due to the sharpening filters, there are clear and present bright lines on the top and the bottom of the frame.  In the past, "detect and cut off black bars" fixed that, but it is no longer working at all.  Normally, when SVP detects the black bars, the screen blanks black, and the lines at the top and bottom of the screen disappear.

Please assist.  I want the sharpening, but I don't want the bright single-pixel deep lines on the top and bottom of the frame.