Slide not always retracting
The Dinette/hide-a-bed slide out on my 2019 Discovery LXE 40 M is not working properly. Occasionally it will not retract without trying several times. When it does this, it will move a little then stop, making a click sound. I move it out again and try again and sometimes it will go in. Sometimes I have to try several times. I have also pulled it from the inside while someone operates the switch, which seems to work. Any suggestions as what might be causing this. I also cleaned underneath where the rollers run.