68 300 power windows issue

im working on restoring a 68 300 that has power windows I’m having a issue with drivers side window ..window will intermittently go up for a couple inches and then stop and does the same on a attempt to bring it down when the button is pushed in the corresponding direction after bringing the button back to center and the pushing it again the window will go up/down couple more eventually the window will complete a cycle ..is this a bad control issue or something else further in
Any input...

68 300 power windows issue
Author: zombie