Extract amount & passing it on as a variable for renaming

I'm currently trying to extract, e.g., the 2nd Euro amount/occurrence with the custom text variable

Code: Select all: Amount EUR

like so:

Code: Select all: 1.111,11

(The format is 2.234,45 EUR, whereby the . is the thousands-separator and the , operate the Euro from ct.)

and use that Amount EUR-variable so that it renames the invoice with the Euro amount in the file name:

Code: Select all: DD.MM.YYYY - Invoice - Amount EUR extension

The preview rule I get a green check mark, but the file is renamed to this (without the amount missing):

Code: Select all: 20.04.2024 - Invoice -.pdf

Am I missing something?

Your image isn't coming through but how does it look in the preview?