Pivot table unexplained data

This is driving me crazy:

I have a table of text data and the first column has equipment numbers. All are collated on the Pivot table correctly except one "PS4". I have deleted the data, pasted as values, typed manually, formatted etc. but I still get the following result on the Pivot:

Data Table:
PS4

Pivot Table:
lkkkl;;;'lll

I thought someone in Microsoft was trying to mess with anyone using a Sony PS4 so I created a bank document and the Pivot works fine with PS4 in the data table, I'm lost. All help appreciated.

When I add a space in the equipment number to "PS 4" it works fine, see pivot screenshot attached.

Added Excel file, I had to remove most of the data for confidentiality reasons but hopefully, this works to show the error.

Administrative note

Welcome to the forum

in your haste to solve your problem, you probably missed the yellow banner advising how to get answers faster by posting a sheet ?

Please take a moment to read it and attach a sheet accordingly.

Thanks you for helping us help you

And the password is... ?

It looks like someone just overtyped the caption. You can just type over it again.