Welcome to the forum.....I see there are no responses to your issue as yet and maybe bringing this to the top again will result in other 2018 hurricane owners helping out a bit.
I have done a little RV shower door searching on line but it is not easy finding much on your coach shower specifically other than sellers with walk through pictures of the glass folding or curving around the back of the shower wall. Can you find a manufacturer label on the shower door somewhere externally since you cant get fully into the shower? The other option is a selfie stick with a phone camera stuck into the shower opening or stuck over the top rail so that you can take some random track shots. You might get lucky and see where the hangup is occurring. Maybe it is a track screw that has backed out enough to catch a door roller? Maybe other 2018 Hurricane owners can determine who the manufacturer is or post some pictures of the track system so we can try to help? The other option is calling Thor and ask them who the manufacturer of the shower door system is and go on their web page for repair details or call their help line. There is likely screws along the top rail near the shower wall that would dismantle things, but this would likely be a 2 person job and may cause more grief if you are not very mechanical.
__________________
|