Steam Class 33 - Can't See Out Of Window

I have just bought the West Somerset Railway and the Class 33 on sale.
I have started the training scenario for the Class 33. The windows are covered by some shader effect - I don't know if it is supposed to be ice or water. I am unable to see out of any window.
I have tried the wipers and have turned on the cab heat and the demister. The shader effect doesn't go away.
What am I supposed to do in this situation?

 

Have you got any mods installed?.

 

That looks like the old rain effect. In this situation I can only imagine you've already done the only thing you can do - report it. If a physics reset and the wipers haven't cleared it I doubt anything else will.

 

I was using the Cab Cameras Improvement mod by JetWash/Spikee1975. I have now removed it, and the window effect is gone.
Thanks for your help.
Hopefully I can use the mod again when it is updated to be compatible with yesterday's TSW update.

 

I just tested on steam. I do not get that effect so you most likely have an outdated mod. Maybe a cab view mod or something?

 

The update is already uploaded to tsc, will hopefully be approved tomorrow morning.