Auto screen timeout doesn't work if screen lock after screen off is enabled

### Prerequisites
- I have searched open and closed issues for duplicates.

### Describe the bug
- Auto screen timeout doesn't work if screen lock after screen off is active.
### Steps to reproduce the behavior:
- System settings> Power > scene timeout to 5m ...
System settings>security> Locking> screen lock after suspend ...and screen lock after screen timeout is turned on..
### Expected behavior:
- It should auto lock the screen and turn off the display after that set time..

### Platform Information:
- OS: elementary OS
- OS Version - 5.1.4
- Hardware info
-Kernel- 5.3.0.51
Model- hp da0326tu
Cpu- i3 7100U
Ram- 8GB
GPU - Intel HD graphics 620

Please check what applies:
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- [ ] I'm using the latest version from git that I've manually compiled
- [x] I'm using the latest released stable version

### Additional context:
- My laptop screen goes off after 5m and after 2-3 Seconds it turns on again and shows Login screen for forever it never turns off the screen....
No modification done to the system..

An early reply is highly appreciated thank you 😊