If the place is big, it may have a hard time loading the newly inserted decal.
It could also be how you saved the decal file.
If you could tell me:
What type of file is the decal? (PNG, Jpeg, Etc.)
How many bricks are in your place? (If unsure, estimate)
How many decals are in your place? (If unsure, estimate)
Reply with these, and I may be able to help you. |