I have a relatively recently made 8" Jet jointer with a spiral cutterhead. When I run stock through it, sometimes the leading edge of the piece will bonk the front end of the outfeed table and just stop.
I deal with this by backing the piece off an inch and then pushing the piece in again faster. Kind of a head start. That seems to "jump" the piece up onto the outfeed table.
You're thinking: "obviously, this guy's outfeed table is too high." But it's set so that a steel rule pushed from the outfeed table back into the cutterhead grazes a tooth on the cutterhead enough to rotate the cutterhead a wee bit. And it's even all the way across. Moreover, if I lower the outfeed table I start getting the usual problems with that--snipe and some bowing.
The saving grace is that this problem only happens on the first pass of a piece, and only on about 50% of pieces. By the second pass, everything is fine.
Does this happen to others? Should I just ignore it?