@Juan_Felipe_Carvajal we have a bug filed for the ‘Get Folder Items’ activity in the 4.0.3 activity pack. @Roxana_Irinei and the support team are aware and following.
You should be able to continue using the 4.0.3 version if that’s what you were using on your Studio Desktop before the March 2024 release which was ONLY for the dynamic activity pack. That has the Studio Desktop version of 2023.10. It is also where we will be regularly adding updates/new features so I would strongly encourage you to take advantage of those there. You are more than welcome to stay on 4.0.3 or any other legacy version should you choose, however.