Problem with hanging IKEA PAX Tonnes glass doors

Hello,
I am new here and just registered. I have already tried using the search function to find something, but didn't find anything suitable.

I bought a Pax cabinet with glass sliding doors and now I am having trouble hanging the back door. Somehow the rollers don’t fit into the designated track.
Do you know this problem?

However, I have now also discovered that I have swapped the long side strips of the doors (235 long). Some are marked with an "A," one is not. The instructions specify this exactly, but I kind of ignored it... :(
Could that be the mistake? But they are absolutely identical...

Thank you very much in advance for your help!

Warm winter greetings from Cologne
Volker

Can you take a picture, or upload the part of the description. For better understanding...

Hello Volker,

as already described in several posts about other PAX sliding doors, that is exactly the error. So take both doors apart again and reassemble them correctly. :)

Best regards, Milan