Sealer question.

Hey guys, First time poster long time customizer..

But I ran into a problem I never had until recently..

I sprayed a custom figure of me with Clear Acrylic Sealer (Matte) and it's for Decorative Crafts so the can says..

But for the first couple weeks the fig was great.. No chipping no smudges.. But now. It's starting to get sticky.. It's not extremely sticky but its just enough to get on my nerves..

Does anyone have some sort of alternative? A spray sealer that doesn't chip or become sticky?

Karma will be given.. Help appreciated much..

Thanks in advance!