Window Regulators Keep Failing

[72SB]

I also have issue on PS window. My regulator appears to be original. Glass was replaced by PO so at some point someone has been in the doors to do that. DS works fine. PS "binds" at the same spot rolling down only. I have to roll up slightly, then back down to get it to roll down. Sometimes having to repeat the back & forth crank thing to do so. Rolls up like butter

I have pulled door card and greased all I can get to without actually removing the regulator. It got slightly better but still binds same spot rolling down that window. With the regulator and window installed I can't find a "why" it does it. Track and window felts were also replaced by PO