If a sustain pedal is not working correctly when connected to your ReMOTE LE, check the settings for the sustain pedal in the template that you are using. Press the 'edit' button and then operate the sustain pedal to access its settings. Use the octave buttons to scroll through the settings and make sure they are set as follows:
Control Type - CC
Control Number - 64
Low Value - 127
High Value - 0
Button type - Momentary
Note that these settings are for a normally closed pedal. If you have a normally open pedal set the Low Value to 0 and High Value to 127. Once you have set these press 'write' three times to save the settings and then 'play' to return to play mode.
These settings are saved with the template and not globally. This means you must repeat this for each template on the ReMOTE LE that you use.