Sticky Paint

I had antique white paint mixed & used it on walls . It dried fine . I had some left & painted a wooden shelving unit that had been previously painted & the paint has never completely dried . Almost but not quite . I thought maybe the previous paint was the culprit . I bought a bare 1x10 board from the lumberyard , primed it with latex primer & then painted it with the antique white . It never 100% dried either . The antique white is latex .
If I paint over this barely sticky paint with a different paint , will the top coat dry properly or am I stuck with a sticky shelving unit ?

[Harry Chickpea]

Best advice is to call the paint manufacturer hotline.

[Horseyrider]

Some paints take more time to cure, especially in high humidity. Don't try and wash it or set anything on it for a while, or things will adhere to it and mess it up.

Patience, Grasshopper....

I painted it a few months ago .

[Travis in Louisiana]

I did a GOOGLE on paint not curing and this is just some of what I found:

It's called "blocking" and often happens w/latex paints - especially if the 1st coat wasn't allowed to dry fully before the second coat was applied. It's not much of an issue on walls, but horizontal surfaces are a different story.
The ultimate solution is time - possibly a few months. The inner coat's moisture is blocked from evaporating by to outer coat. It will slowly wick through the surface over several weeks.
You might be able to reduce the stickiness by spreading some fine talcum powder on the surface, then lightly vacuuming it off - but TEST in an unobtrusive area, first, because if it's too sticky, you could end up with permanent, visible, dust built into your paint job.
You may be able to speed the process by blowing warm (not hot) air across the surface for several days (hot air can cause the paint to peel). This can open the pores in the paint to allow slightly more rapid evaporation, but a lot depends on what paint you used, how much moisture is trapped in the undercoat.