Pivots table with column duplication

Hi everyone,
I have a question to ask for help here.
I was doing the theatre occupancy plan by pivots table. But I get a duplication of two columns. Here is the plan attached in this post.
The question is, I checked the data base serveral times, there's no problem but I don't understant why there is a duplication. I selected "do not repeat item labels" in "Design-Report layout", it didn't work.

So I post this to ask for help. If someone has the solution, it would be great!!!! If someone has the same question as this, we can interchange some info to find out the problem together.

I'm looking forward to the respons, thank you everyone here!!!

Weixin Screenshot_20230713123305.png

One must be different from the other in order for them both to be showing in the pivot.
The first thing that I would check would be that there are not any spaces in one and not the other.

For example:
" 29" or "29 " or " 29 "

Hi!!!!
It's solved!!!! U r right, but I thoungt the same when I found this question, I checked all, at first I didn't figue it out. There is a space there before "29". Maybe there are more than 270.000 datas so my computer didn't run well when I filtrated them!!!

Thank you so much!!!!