I'm pretty sure I've had at least one accepted, but will monitor this and report here when I am 100% sure.
I haven't been super active since they introduced this yellow box so can't say how bad it is yet, but first impression is I don't like it at all, especially not the long waiting times. It's not acceptable for live bets. I don't know if they free roll or that it's just a glitch that causes some bets to get this yellow box, but regardless it's bad news. And whatever causes the delay, customers will think they are free-rolling, so not a good look for them.
If you don't like this introduction, please send them feedback to
support@bookmaker.eu if you use BM or whatever the email address is if you just any of the other two. It's unlikely to help, because they ignore feedback most of the time, but complaining now is probably better than a few months in I think. And let them know what you don't like about this change, whether it's the fact that bets go pending, the time it stays pending or whatever it is.