Left turn indicator works fine
Right Indicator works intermittently.
No bulbs out.
It works sometimes if you rattle the indicator stork and not at other times.

I have spare stalk so could change out, but could it be anything else?

When you are used to indicating to signal where you are going and then you realise that the indicator did not work, you watch it more closely and have to remain in lane because you cannot indicate to change. Its amazing how reliant you are on things just working.

Tends to be worse in the afternoon after the can has sat in sunshine all day and interior is hot.

Any ideas please