E8000 sudden drag at times

[kidsnare]

I read through the forum but couldn't find an answer.
I have an E8000 in my SC Heckler 2020. So far I'm quite happy with it, but sometimes while pedaling uphill I feel a sudden drag or loss of power, as if I shifted down from Trail to Eco mode. I noticed that it mostly happens when I'm going into a tight corner uphill, where the weight distribution on my pedals changes a bit or I stop pedaling for a second while doing the turn. Only if I completely stop for a second or two, the motor feels normal again and the drag is gone.

Also when that happens and I'm going to a higher speed, I feel the same odd surging feedback as described here:
Shimano STEPS E8000 first ride review

While the power delivery was smooth for the most part, there was some very odd surging feedback through the cranks when soft-pedalling or just under the 25kph speed limit. For some reason, the system would cut in and out in a fairly jerky manner, usually as you rotated the cranks through the dead spot.

Does anyone know a fix for this issue?

 

[Cycle3600]

Dont know how to fix but noticed the same on my Shimano e6100. On an uphill ride the torque dies down gradually and on return to flat after creates a drag. Odd behaviour. Looking to try a firmware fix which I read somewhere can be helpful but need to find who can do that…

 

[Tone461]

I had this on my old E8000 motor but never really figured it out. Some people talked about the motor overheating on sustained climbs but again. I never proved this in any way. I know my E800 used to be a bit like a two-stroke, as in you had to keep a fast cadence to almost keep it in the power. As for a update I'm not aware of one. Its an older motor now.
Sadly mine died (E010) some time after. Look for a spare motor maybe?