I have a weird problem with the left-rear indicator on my 2009 Renault Clio. Every time I use the left indicator, it clicks and flashes (on the dash) too fast, and the left-rear bulb is not flashing.

However, when I open up the tail-light enclosure to check the bulb and then use the indicator, it starts working normally. After a while though, it goes back to clicking too fast and not flashing on the left rear bulb.

I know it's not the bulb itself as I just replaced it and have tried it with another spare bulb I have.

Additionally, the hazards work fine, the left rear bulb flashes exactly as it's supposed to when the hazards are on.