Quite embarrassing, I guess I have not unpacked the new version zip file.
Once unpacked, the Graphcombined block is working again. Thanks
I changed both fontSize occurrences to 10px, so text is displayed properly on a mobile device. Maybe this is an option for configuration in settings.php?
Now I see that the page displays fine on my macbook, but on the iPhone I see an empty block. Strange.
I use Safari but also tried Firefox Focus with the same result.
I get an empty block on my mobile device. Desktop layout works fine.
Nothing to see in the error.log for this block. Also no error in this block when I use indexMobile.php?errors.
Today also installed version 3.0.