Hi, I have a Geeetech i3 pro c but I find the rotary encoder on the standard panel (LCD2004 ?) is a bit erratic --- sometimes the menus move on two steps and sometimes not at all when I rotate it by one index.
I have changed the rotary encoder without effect and recently I got a different panel (a "Mini 12864") and moved to Marlin 2.0.X and encountered the same problem.
It strikes me that it may be down to the "debounce" handling in the firmware --- on an Arduino project I have I saw similar behaviour and got around it by using an Arduino library rather than inline code. This is probably not possible with Marlin :-(
Has anyone else encountered this ?? and if so, how did you fix it ??
Best regards,
Dave