I received an invitation to Shalstest. I was able to join that group with no problems.
Then I received mail from Shalstest, including calendar reminders.
Since I have enough mail coming in already from groups.io, and elsewhere, I decided to attempt to mute them by using "Mute Threads Tagged With #cal-reminder" link in the e-mail.
I copied the link and went to the group, NOT SIGNED IN, to see what would happen.
Here is what transpired:
1. It It asked me for my user name and password
2. I typed them in the boxes provided
3. Then I clicked mute
4. No confirmation was given, instead it threw me back to the groups.io home page and I was not logged in.
5. I logged on and checked my muted hashtags, and none were listed.
What did I do wrong, or is this an issue?