Powerfold door mirror stopping half open

My UK passenger side door mirror stops and locks partly unfolded, repeated operation does open it fully.
Does anyone know of the best approach for fixing this?

I don’t have that feature, but my guess is it probably needs some WD40 oil on the pivot shaft.

Thanks Rob I’ll try that or silicon spray, but as it appears to be locked in that position when it stops I wonder if it’s a memory issue.