Permission issues when using RDP

Hello experts,

We are currently experiencing a permissions issue when using an application. For this application, the user will remote into the Server as separate ID (not admin) and use the software. The software has a configuration file that is located in c:\programdata\"Folder". The issue is when running the application, the software needs to read and write to a config file in that folder. We have a group policy in place that hides the C drive from users. In this configuration file and parent folder I have given the domain users read and write permission. Even with these permissions set, it seems that only when ran as administrator it will successfully allow access to the file with generating an error. A user that does not RDP into the machine and runs and connects locally within the office does not experience this issue. What methods could we use to give them access to these files with the correct permissions without making an administrator. Thank you!