I am having the same issue with custom countertops. Has anyone found a solution or workaround? 
 
	Attached 2 files from x13. One with the cooktop as a symbol (texture looks good). 2nd image is with the cooktop placed as an object "in" countertop.
 
	My assumption is that when the program creates a "hole in countertop", something doesn't resolve the new, custom countertop, to accept the texture???
 
	Any help would be appreciated. Thanks!