SC5000M Platter Issues

My platter is unresponsive.

When I commence playback from a cue point, then return to the cue point stopping playback and try to spin through the track using the 45 on the platter, there is no response intermittently and hangs.

Help!

Further notes on performance:

When the playback is stopped using cue button to return to selected cue point, and during platter ramp down, it is not possible to use the platter/record for transport through the track. It seems until the platter has made a complete stop it has lost all functionality for short period of time.

Is this the intended fuction of the players, why does this occur and will there be a fix?