This was my issue as well. My OEM tabs were fine but my window would bind in the front track and cause the "tilt" you described. I moved the lower section of the front track forward. No binding or issues since.
The driver side front track bolts into the door frame and the passenger side does not. I was able to drill new bolt holes for the driver side to mount the track forward but couldn't do much to the passenger side because the track has a welded bracket. This worked for me because my driver side window was the issue but it's likely both windows will eventually fail.
Seems like we have a combination of issues that together cause total window failure. At the junkyard, all the Rodeo/Vehicross window regulator clips I've seen are broken. Obviously a weak part and I like the idea of replacing the clips with a VW part to eliminate one part of the problem.