Shrinking and Showing: As the various parts of a frame and panel door shrink under dry, mid-winter conditions, the unpainted edges of raised panels may pull out of the grooves where they've been hiding.
Touch It Up: After the fact, you've got no choice but to come back and touch up the paint. Carefully scrape and sand the area, mask the uninvolved parts, and apply color-matched paint. (Nobody likes to pay top dollar for a repair, but this is a job for a skilled brush man, not a new helper.)
Paint It First: If you have control over door or cabinet construction, you can keep this problem from occurring by painting door parts in advance of assembling the component. Note: only the edges (tongues) of the floating panels need to be painted before assembly, and just priming those portions may be enough.