Can't get on horse

[Tanya :P]

I have only just started, have been let out of the cage and inatructed to get on a horse and follow the guy. I pressed e, nothing happens. Long press, short press, double press, approached the horse from different dorections, checked whether it truly is e in key mapping- and it is. I really want to start playing but I can't even do the first thing you need to do... Has anyone else encountered this issue? How do I mount the damn horse???

[MassaCaleb]

Did you ever manage to solve this issue, I am at the start of chapter 4 and it not let me ride the horse i even tried plugging in a controller