If you use FF and have 49.0.2 (update done on the 20th) for sure you have an issue with the MD scenes turning black.

How to solve it:

Navigation bar: "about:config"
Accept the risks.
Search for "dom.ipc.plugins.asyncdrawing.enabled"
Double click to change from "true" to "false"

Solved!!

Thank you @No one for providing the solution!

 

My beautiful Bob!! I see you again!!!

Thanks Dst & No one!

Z

thanks you two you're awesome.

Its a flash issue then, if you are saying its the scenes?

Do  HTML5 ones have this issue?

1 hour ago, Chewett said:

Its a flash issue then, if you are saying its the scenes?

Yes it is the scenes, the yellow/orange LHO button had additionally a black square as background and the erolin heat had a black background too

Exciting, Im travelling atm so when im home I will see what I can do  

Question, Why was your value true?

 

The default is actually false which is what you recommend telling people to set.

If you havent been mucking with it, then I can only assume that its been wrongly changed, or at one point firefox decided to change the default from true to false, and your browsers didnt change.

When I installed firefox just now it was already on false.

To confirm, you never modified this value before?

If anyone has a firefox version, or can make one that doesnt work, without manually changing that value information would be good.

Yes, I know you know that sometimes both me and No one "muck" with variables but this time you're not lucky enough.

Click the link. It should help you.

https://bugzilla.mozilla.org/show_bug.cgi?id=1306465

 

35 minutes ago, dst said:

Click the link. It should help you.

https://bugzilla.mozilla.org/show_bug.cgi?id=1306465

 

Cheers, looks like firefox is buggered for the moment.