Remote door locking issue

[veedubgub]

Remote door locking intermittently working. More often than not doesn't work.

Issue seems to be coming from the nearside sliding door as can be heard in the clip the door makes a repeated buzzing noise as if something is jamming when trying to lock.

Any suggestions on what could be the issue here?

//cloud.tapatalk.com/s/69b07725cb3 ... 821238.mp4