Lens of my camera developed a problem since last few months.
Th lens wont retract totally when using the zoom ring. It gets stuck at around 30mm.
I have to manually puch it in by pushing the top of the lens inside.
This leads to great inconvenience.

Also the zoom ring is not smooth to use as before. It does need some force to use it.

Cameras - Tamron - 18-200mm f/3.5-6.3 for Nikon