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Description
When RRF is awaiting a response to a popup invoked by M291 or by G30 when there is no Z probe, any commands received other than M292, G1 and some status command are ignored. However, DWC (and probably PanelDue) send M120 G91 G1 ... M121 to do the jogging. This results in (a) the G1 command being interpreted as absolute not relative, and (b) warning messages that the M120 G91 and M121 commands were ignored.
This is a new bug in RRF 3.6.0.
Workaround for the absolute/relative issue: insert G91 before the G30 or M291 command, and G90 afterwards (or M120 G91 before and M121 after).