Secureline won't let me shutdown W10

[saxophone21]

I have had Secureline (paid) on android phone and tablet and W10 pc for some considerable time.

Today, I started having issues with W10 pc (mobile and tablet are fine). Been working fine since last W10 update last week. Firstly it wouldn't change locations  - just hung.
Used Task Manager to kill Secureline but still wouldn't shut down. Message DRIVER_POWER_STATE_FAILURE.
Rebooted. Re-installed Secureline. Connected to one server OK, but would not allow location change.
Ran DISM and sfc - no issues. Still had the same shutdown problem.
Uninstalled Secureline and now shutdown is normal. Have checked for driver updates and all are current. The tablet and mobile connect via the same router so I don't think that this is the issue and as an experiment I tried Opera's VPN and no problems occurred.

Any other avenues to pursue?

[Asyn]

-> https://forum.avast.com/index.php?topic=231530.msg1532813#msg1532813

[saxophone21]

Thank you. Switched off Malwarebytes web protection and reinstalled Secureline so now all OK. Would be nice to know when MB and Avast resolve this conflict.

[Asyn]

You're welcome.

[saxophone21]

I posted the issue on Malwarebytes forum. After many postings and suggestions they have come up with a new beta version 4 v804 which has solved the issue