Came across this piece of info in the FCTM bounced landing recovery
If higher than idle thrust is maintained through initial touchdown, the automatic
speedbrake deployment may be disabled even when the speedbrakes are armed.
This can result in a bounced landing. During the resultant bounce, if the thrust
levers are then retarded to idle, automatic speedbrake deployment can occur
resulting in a loss of lift and nose up pitching moment which can result in a tail
strike or hard landing on a subsequent touchdown.
pretty much covers what the OP Describes.