Alps encoders in Midibox LC: one tick two steps!

[sebiiksbcs]

I don't know if this is normal, but my ALPS encoders STEC12E08 (datasheet attached) send two inc/dec steps each tick I turn. They have 24 detentions. I tried MIOS_ENC_MODE_DETENTED, MIOS_ENC_MODE_DETENTED2, and MIOS_ENC_MODE_NON_DETENTED already.

Also, the encoder speed thing (speed mode 2, divider 3 etc.) does not seem to work with Ableton Live nor with Cubase. When turning the Vpots too fast, most ticks are even not recognized, or dropped, which results in even slower speed. When I switch to GPC mode, the encoder speed works as defined though.

Has anyone made experiences like that?

700708-da-01-en-ENCODER_STEC12E08.pdf

700708-da-01-en-ENCODER_STEC12E08.pdf