Indicator Problem - not always working

[UNLEASHED]

Here's the link to the clip of what's happening - in this clip the car had been idling + short drive to work - all up maybe 15 min of running. Seems to be about the average time for the car to warm up properly before the indicators start this process and eventually work. Really annonying because on the way to work no one knows where I'm going and really don't want to get pinged for it.

5 years later...Did you find out what it was??