Hi Paul. Have you already tried these general troubleshooting steps?
Disable 'Lock instantly' with power key (settings may have different names based on the phone model used)
Set Lock automatically (after screen turned off) to 1 sec or more
Some security apps can force a secure screen lock to appear despite the settings above. Generally, a sign of this problem is the user will see a secure screen lock appear after unlocking Golf Pad's SmartLock screen. Consider disabling security app during a golf round.