Format error exporting to excel in List Labels

I have a strange situation occurring while exporting a report into excel file type. On 2 different machines (V.M.´s) i have a discrepancy on time type table column. While in one of them the presentation is has expected in the other it messes the format of that specific column adding ‘tt’ to the end of it´s data. Please find attached screenshots of the O.S. and excel result(I am not allowed too upload the lst and lsv files,sorry ). Can someone please let me know what is causing the issue?

LL version is 21.

Thanks and regards,

Solution

This behavior will be fixed with service pack 25.004. A hotfix is available.