During these dog days of OS intransigence I've noticed some things that I'm passing on here, for what they might be worth.
NOTE: I have my computer set so that I don't need to double-click in most cases. This means that icons light up when my pointer touches them instead of after a first click. MY first click may be your SECOND click.
When clicking on anything on OS it usually gets highlighted; I refer to that as it "lights up" .
When I put my pointer on something and click, it lights up. If I move my pointer away, it reverts to unlighted. When it does that, I find that it will go to that place without giving an error message, most itmes.
If, however, it stays lit up after you move your pointer away, or you can't scroll the page, blog or comment section - if it just freezes - after clicking "Post This Comment" or whatever, then 99% of the time you are going to get that lovely "Lots of erors occurred", that you love so much.
When this 'freezing' happens, BEFORE you get the "Errors" message, go to the URL address bar at the top of your page, and click on the curved arrow at the right end of the bar. This cancels your "Post This Comment" effort. Then re-click on the item you want to go to. This sometimes helps you get there. Not always.
This also works, sometimes, with comments. I have found that if I go back to my comment, after I've clicked the curved arrow, and delete a letter or punctuation mark and re-enter it, before clicking on the "post it" or whatever, that small change can, sometimes, help.
Often this will not help you insert a comment. If the page freezes up on you DO NOT hit the Post This Comment button again. Try this.
Close your browser. Re-open it. Go to your OS page. Go to the blog you wrote a comment on. Check to see if your comment is there. Often the act of closing your browser will force OS to insert your comment before it shuts down when you close your browser. No.... I have no idea why.
If you've discovered any tricks to make OS behave, please share them here in "Comments".......