I don't know if this is related,but I had an issue with creating lather this morning.
When I tried to whip up a lather using my usual (only) cream and brush it seemed to start off OK, but then the lather just seem to disappear before I could even finish it off for the first pass.
As it happens I had been applying an antibiotic cream (which has a greasy consistency) for an eye infection over the past day or two and I suspected that this may have been the cause. So I scrubbed the sink and my lather bowl to remove any greasy residue. I also washed my brush thoroughly using hair shampoo and then, in case the shampoo might cause an issue, normal soap. I then tried relathering and the problem had gone!
I gather that you don't use shaving oil, but there may be another oily/greasy contamination which is interfering with the lather.
[FONT="Comic Sans MS"]“One day soon the Gillette company will announce the development of a razor that, thanks to a computer microchip, can actually travel ahead in time and shave beard hairs that don't even exist yet”[/FONT] - Dave Barry