Well the log is helpful. It does appear that the mount began refusing to track upon command at 10:38:13 and continued to refuse until 10:38:49. That is a 36 second drop out. The log indicates the tracking rate command being issued over and over again , the pmc8 responding with the correct response, but the reported position of the mount in RA was not changing. As for the DEC axis, it seems it responded correctly at all times. This is from analysis of the log you pointed out had the problem at 10:43. Interesting. When this log was made, what app were you using to control the mount, and what hub did you use? Was "continuous track with loss of comms" turned on? You did not lose comms though. I honestly don't know what could cause this.
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired