Fenix 8, Dynamic Routing not working on Round Trip Routing?

I’ve done this a couple of times and it’s worked. Not always instantly but eventually an alternative route appears. 

4957289 said:

Have seen some posts about it not working so.

Why start a new thread?  It’s far better to keep posts about similar issues in one place. If you don’t want to do that at least add a link to the posts you’ve referenced. 

It works as long as you stay on the main roads, on the trails nothing works worse the watch is lost, announced as a revolution this function is just advertising !!!

Cela fonctionne tant que vous restez sur les grands routes, sur les sentiers rien ne fonctionne pire la montre est perdue, annoncé comme une révolution cette fonction c'est juste publicitaire !!!

Yes I have the same issue. And still no turn notifications ....

Christian said:

It works as long as you stay on the main roads, on the trails nothing

It works if the trails or roads you want to use are routable and on the map you want to use. 

Has this been resolved yet? 
I have the same problem, except that mine consistently (every time I use it) crashes mid-run. No re-routing. It simply brings up that error message, even when running on major roads!