Flex 2 track lighting inconsistently turning on

sgable

I have an 8' section of Flex 2 track lighting installed in my bathroom.
There are 5 heads on the track and for about 4-5 months everything was fine.
Now the lights will rarely turn on at the first flip of the switch.
It sometimes takes 4,5,6 flips of the switch before they turn on.

I have replaced the switch, tightened contact points, and moved the lights around a bit.

No luck tho. Why would a perfectly functioning track light suddenly start acting so weird?