odd map scale in arcgis pro 2.5.0

[BertKraan1]

I just noticed an odd map scale:

I can type something like 1:1.000.000 but that doesn't do anything useful. the same happens in multiple projects or when just creating a new project with an empty map

Anyone an idea on what I'm doing wrong?

[BertKraan1 · Accepted solution]

I found it. I'm on an old windows 7 machine in the Netherlands, perhaps thats the reason. I changed my regional settings to 'US' which solved the problem.