OK, what the heck?
Today I tested it again and now the same “failure” is again there.
So I testet with smart phone (also firefox browser), and it worked fine?!???
Ok, maybe my firefox browser has an issue? Test with MS Edge and Google Chrome at first time it goes correct with one spinner and mail, but all other tests also with the example sites I posted in first, ended with the two spinners.
Has anyone an idea what it could be?
Thanks