How to make the billiboard light not to be buggy?

[clock123]

I won't be able to understand what you mean without a screen shot of your issue.

here im chosing the file i want to import into my map, it's billboard lights, compunded ( i've tried importing other things too , like furniture [ not custom , regular ] but it does the same issue as you will see below):



here i've finally choosen the file i want to import into my map ( right side of the upper screen to see ), but i can't place it because it doesnt appear: