Unable to export recorded clips as a file, getting "Failed to export" error message

Trying to save a clipped recording as a video file, but when clicking the "Export Video" button in the Export Clip window just brings up the error message "Failed to export, try again (2)". Tried changing various export settings (resolution, framerate, bitrate, codec) and different folders on my system, as well as adding permission to access said folders in Flatseal, but I keep getting the same error message and no saved video clip.