i have an issue with my design

Replicating the same design on a different background can be difficult, especially when working with gradients and filters. In this situation, one solution could be to adjust the color properties of your design before applying it to the new background. To do this, try using color adjustment tools such as hue/saturation, levels, curves, and selective color. These tools can help you fine-tune the color of your design and make sure it looks great no matter what type of background you place it on. Additionally, if the design still changes color when moving off the black background, try creating a clipping mask to keep it in its original form. This will ensure that your design remains unchanged no matter where you place it. With these tools, you can make sure that your design looks perfect no matter what type of background you use.

Good luck!

Does your design use layer blending modes? If so, they need a layer underneath to blend with.

Dave