There's the remote possibly that the clutch pressure plate was pushed outward far enuff so that its splines uncoupled from the hub's splines, and the pressure plate's splines are now slightly misaligned and sitting atop the corners of the hub's splines.
The clutch pushrod normally protrudes about 1-15/16" out from its seal face. If its protrusion is significantly less, say about 1-13/16" or less, that could confirm this unseated pressure plate.
A proper fix is to pull the right side clutch cover, and fix things.
A shadetree could try to get the plate to realign/settle by pushing the pushrod a little further, getting the pressure plate off the spline corners, and do some clutch bumping (trans in gear, bump/rotating the rear wheel fore/aft), while simutaneously working the pushrod in/out, feeling for the loss of pushrod slack. Not sure if that makes sense, sometimes difficult to describe this stuff...