For many audio interfaces there is a right/left channel.
If you are only plugged into (only) the right channel this is expected behavior; you may hear it in both channels (due to panning in the audio interface settings) but the interface is still only sending the signal thru one channel to PT.

If this is the case I'd suggest setting the target track in PT to MONO, in which case PT will record two MONO tracks .. and then after recording, set the desired single MONO track to center panning.
And delete the other.

If PT only shows signal on the right side, then that is likely all it is receiving from the interface.
You may be hearing it in stereo during the monitoring due to the audio interface.

What Audio device are you using?


Make your sound your own!
.. I do not work here, but the benefits are still awesome