I don't know why, but the problem was gone. Sorry for my taking your time.
All fliers can now get themseves shown.

66.0.3515.44 is doing fine after rebooting Opera as suggested.

Mine has been updated to 66.0.3515.95

Update 80.0.4170.63. Thanks. Pls keep up a speedy update.

Thanks for 80.0.4170.72.

Opera 111.0.5168.43
Despite a snooze bar off, some sites in a favorite bar snoozes.

Corrected!

@hwpc48 Correction:
Aug,25,Fri should be Aug 25, Fri should be Aug 26 Sat.
Hour and Minute are ok.

Update and recovery
After updating, last recovery date is shown.
August 25 Friday should be August 25 Saturday.

Opera should be more aggressive in updating versions, which is an absolute must for being recognized as a new star in browzers.

No stable updates for more than two weeks.

@hwpc48
Additional inf. The message appearing in the center of the screen seems to be the one programmed within Opera itself. It is together with a small angel.

Opera 89.0.4447.91. After I make Player effective, I click Player in the side bar and select Youtube music. Then the following messages appear while they do not appear in case of Apple music,etc.

Connect to the Internet. You're off line. Check your connection Retry.

Off course my Internet is connected.

@treego: Japanese software professionals are keeping their eyes on 'paste protection' in coming Opera 84. Pls live up to their expectation in a speedy manner as usual.

I am very curious how far Opera could go in updating a stable version when ending the year 2021.