Hello everyone. 

So since yesterday I have this problem with my AutoCAD Drawing. 
All of a sudden the transparency of the layers went to 0% transparance and I could only see black and while colours on my working drawing. So I fixed the transparency issue by turning on the transparency button on, but my drawing is still black and white, and it is very annoying, as I can't work on it like that. 

Also, when I plot it, some ( only some) of the line-weight is not printing to the correct size. I checked on my plot settings, layer settings, and everything seems to be correct. 

Please help. Photos attached.

Thank you!!
Best 

Vanesa