OK, I had that problem once bout' a year ago,,,,
lost all my Chrome everything,,believe it was due to a download from somewhere is what I traced it to, somebody not aware of how it works and the download had badd files in it.
I now check often in my FSX CFG File to make sure the enteries are there.
These are very important for your Chrome & reflection anything, from chrome spinners to shine on any type of aluminum or glass anything that's CHROME or glass.
without those entries, you could end up with everything either turning Black or White !!!
it not always the Aircraft files fault !!
somebody else made me aware of this, is how I found the problem.
I'd copy this File and keep it in a safe place as a reference, so you can gander at yours, to make sure you have those entries and that they match !
See photo below !!
once I got it fixed,, everything worked perfectly again, I have't had anymore problems, BUT I now check every single file download and Inject everything manually before anything ever goes into my Simulator !
I don't particular care to go thru that again, it wasn't easy finding the problem, quite time consuming and I could of done without the Hassle !!!
I no longer TRUST just anything that's up on the net to download anymore, rather its aircraft or scenery whatever, too many mistakes being made either cause they don't know or ain't paying attention !
I'd start here 1st, and look at your FSX Cfg files, then go from here , hopefully this solves your problem,
Jetranger.