I have 1 compressor in the Nether and 1 in the normal world. While using compressor in Nether it just stopped all of a sudden. When I opened the GUI it showed it had full power but wasn't doing the rest of the stack I had queued up in it. So I saved and quit. When I started again nothing had changed. So I went to the normal world to use it's compressor. It also said it had full power but wouldn't do anything. When items put into it. However all my other machines in the Nether and normal world are still working.
I have had in the previous v1.95/b where the flow of energy would just stop flowing. This is different. I even removed the cables and re-attached them but no joy.