Hey K9husker,
Mine did it just the other day when I went to the shop and I told the mechanic what it was doing and he checked it out and said he did'nt see anything wrong so he lubed it up on the shift linkage and it was working fine. Well the bike had cooled off during this time and on the way home it started again. I was changing all the fluids out later that day and once I had changed everything to synthetic(AMSOIL) my problem went away. The only thing I could think it could have been was old oil in the tranny that needed to be replaced, maybe it wasn't letting everything sync properly once it had warmed up after riding, cause since I changed the tranny oil, she shifts like a dream no sticking or missing gears, and neutral is a breeze to find now. And all I did was change the oil.