Hi @Melusine, is your issue when using Windows OS?
I was using the browser for nearly two weeks before I was aware we could earn BAT from the sponsored images. I saw my BAT increase with ads, but nothing more to indicate otherwise.
Then I had a few days where ads had stopped (this seemed to correlate with the recent update), so I followed this Windows troubleshooting guide by Mattches and I’ve been earning BAT from sponsored images ever since - despite the guide specifying ads.
Maybe it’s worth a shot for you, too?