Having a problem where the transition from dusk to night lasts way too long.  I've narrowed down the issue to REX Texture sky themes.  It seems that the REX  dawn/dusk sky themes somehow alter the transition to night.  For example in Houston, the sunset will last until past midnight!  Can someone else confirm this please with P3D v 2.2.  Thanks!

Have you tried alternative texture themes and does it do the same thing?

 

I'll try it out when I get off work later, but for my local airport YPJT sunset was basically bang on, around 1800 hours. I do use ASN in addition to REX so not sure if that makes a big difference.

 

Having a look at Google, sunset should be at 1945 local time for Houston.

I haven't played around swapping REX sky themes.  But several times I've restored default textures, and then adding REX back in and the problem comes back every time.  I've now installed all REX textures except for the sky, and everything is fine.  I was using an example, but anywhere in North America I tried the problem happened.  It starts getting dark about the appropriate time, but the sunset just takes hours.  You can use the time preview function to check it out.