Well, it's good that you found an easy way to fix it :-)
I wonder how long this problem existed for you - not that
I need to know, but the Opera developers might be
interested. <
https://blogs.opera.com/desktop/>
"All my extensions", as well as running a beta version, sounds like a determined user? Or you really, really
like installing software. Which Opera rather spoils
by doing it for you.
The "change log" (from the blog) for Opera 60 says
it's existed since February, but careful poking
shows that it's been the "stable" version since
April 9th: earlier notes refer to "beta" or "developer"
or "practical joke" versions.