Yes, me too, happened yesterday. Just Join again.
I rejoined this morning, and I am now in a "Step Challenge", without a number (like 75K) at all.
Honestly, I'm okay with this as long as it resorts me to a group with different people. I was in a group where the same people were top each week and beat everyone else by at least 20k steps (and I was in the 40k group, so it's quite a difference). I thought the groups were resorted each week, but it wasn't that way for the past month at least.
Every few weeks I am thrown out of step challenges. I get to about the 75k challenge, place at the top of it and the following week I am no longer in a challenge. It has happened numerous times, I opened a case with Garmin, they said it was being escalated to be investigated and that was back in December and I've heard nothing back. Anyone else seeing this issue?
This has been consistently happening to me for over a year. I almost always make my 80k goal give or take, no, more than 2 k or so over. I have contacted Garmin via email and phone many times and been told as were you ,that the matter would be looked into...however it has never been fixed as I was thrown out of the 80k challenge again today. Oddly many folks go well over the goal by 15-25k or more and they are allowed to stay in the 80k group. This past week, I fell well below 80k for the first time because I hurt my ankle and I was promptly kicked out. IMHO I believe these groups are monitored by staff and in an unfair and arbitrary fashion.