I also did try different libtoup debs. I was using libtoupcam_1.48.0-1_armhf.deb with 1.8.9 and libtoupcam_1.50.1_armhf.deb with 1.9.4

However extracting the .so file from 1.48.0 deb and copy it over onto 1.50.1 made no change.

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