I just installed 737 immersion into p3d i started the pmdg aircraft i didnt see the stroble light working as it should with immersion my landing never either did the same. Whats your advice. And in my settings it turned up to special effect to full or high. Please help me resolve this problem.

 

Regards.

If you haven't already, try deleting your shader files.

Generally speaking, when you make a change to your graphics contents (adding scenery, a new package like the one here), you should do this. Some users here clear the shader files routinely.

You can do this easily if you use PTA by using the 'Apply Settings F9' option.

Otherwise:

C:\Users\USER\AppData\Local\Lockheed Martin\Prepar3D v3\Shaders

Here's the location in Windows 10 to do it yourself.

so your saying to clear the shader files in pta and press apply shaders again? Gonna give it a try and let u know shortly.

I went to pta no change at all. Whats the next option.