Please use the following guide to test the firmware on your device to version 1.3.15.68 to resolve the issues you were encountering.
1. Download GC3/LP Manual Firmware File v1.3.15.68
2. Locate the new file named plm-fw_1.3.15.68_RELEASE_BUILD in your Downloads folder
3. Drag the new file to your desktop so it is easily accessible
4. Connect GC3 via USB-C
5. Use the Windows Search bar to look up 'This PC' and open it
6. Open GC3 device from Windows Drive Folder (Personal Launch Monitor)
7. Open drive folder inside Personal Launch Monitor (PLM Storage)
8. Drop the file in PLM file on your desktop into the Storage folder
9.Allow the device to run through its automatic power cycle
(DO NOT TURN OFF THE DEVICE DURING FIRMWARE UPLOAD)
10. Confirm Firmware Version On GC3/LP Menu (Settings > Firmware)