This is common. The fix is a bit complicated and as you found out, not necessarily long lasting. My roof rubs on the right hand "roll bar", which for me is the passenger side (Italy). At the transition point from glass to fabric, the roll bar catches and it used to make a big bang, threatening to tear off the silver trim piece. The dealer from whom I bought the car adjusted the top, but it soon started acting up again.
I cut a small wedge of wood to fit against the inside of the glass and it forms a little ramp which eases the transition from glass to fabric. In other words, the top of the roll bar rides up this ramp as the top opens and closes without catching on the "lip" where the inside of the glass meets the fabric top. I attached it with black duct tape and sort of "upholstered" the little ramp with a layer of the same black duct tape. Then I lubricated it with a dab of silicone spray. Finally, I put a little decal on the outside of the glass to hide ramp. Mine says "SUPPORT MENTAL HEALTH OR I'LL KILL YOU", but you can make your own statement.
No, it's not up to "Concours d'Elegance" standards, but you have to look closely to see my low-tech fix. The top still rubs the top of the roll bar, but it doesn't catch and release with a bang while tearing off expensive parts. A dab of silicone spray every 6 months keeps things working smoothly.