Windows suddenly prompting for Admin password when recovering files

When saving files to downloads, documents or pictures, Sandboxie prompts to immediately recover the file. However, when I click to recover the file, a Windows admin prompt says "You'll need to provide administrator permission to move to this folder" and I have to enter my Admin password (I'm using a standard account). Oddly enough, the Windows admin permission prompt does not occur when saving files to the desktop. This only started happening yesterday; everything worked fine before that. How can I fix this? Sandboxie 5.33.3. All the settings are standard except I added Chrome and Firefox to only run in the sandbox and I gave Chrome direct access to cookies.