Welcome to the Manjaro community @mba
Try doing a full shutdown, turn the power off for a minute or so, turn the power back on & restart your machine (aka as a “cold boot”).
I’m not sure why this happens, but occasionally after a system update which includes firmware updates, a cold boot is required.
If that does not work, more troubleshooting may be necessary. To do that, please read through the following pre-prepared instructions:
As a new or infrequent forum user, you are encouraged to take some time to familiarise yourself with Forum requirements; in particular, the many ways to use the forum to your benefit:
The Update Announcements contain a Known Issues and Solutions section and should generally be checked before posting a request for support.
Output of the inxi command (with appropriate parameters, and formatted according to forum guidelines) will generate information useful for those wishing to help:
inxi --filter --verbosity=8
or the short form (preferred):
inxi -zv8
- inxi man pages (Arch Manual)
Regards.