Lost about $6,200 in May to a network that had paid me on time for fourteen months straight, and the thing that bothers me isn't the money. It's that I've gone back through six months of emails and the signs were all there and I read every one of them as normal.
AM changed in January. Two of my best offers 'paused pending advertiser review' in February and never came back. March payment came four days late with an apology. April came eight days late with no apology. May never came, then the site started 502ing, then the telegram went read-only.
Every one of those has an innocent explanation and I gave it one at the time.
So what I want from this thread is the specific things people noticed before it went. Not 'trust your gut'. The concrete tells - what changed on the platform, in the emails, in the offer list, in the payment behaviour. I'd like to end up with something I can actually check monthly.