As I read the part when you write that the scene got stuck, I told myself "the guy on the horse is going to kill you..." It's so weird. I had a feeling something bad would happen.

Then I read the rest of your post and I knew I had to reply.
Although I've never tried past-life regression with akasha, I almost had a similar experience. The scene wasn't really stuck, it just paused, like I was flaoting, maybe? I don't really know how to explain it. I knew I didn't want to see the rest of the scene. I was so freaking scared. That's when I woke up. When I came back to the scene, something bad happened afterwards. I think my subconscious mind wasn't ready to "accept" it and I would always be afraid to go back somehow. This could explain why the scene got "stuck" for you. I don't know what you think about it. That's just my theory...
I also have another theory, and it might sound crazy but... Have you ever wondered that someone could've betrayed you in that lifetime? I'm saying this because when I had that past-life regression, the scene I saw reminded me of what you wrote (with the men approaching you). I realize the circusmtances were different, but in my case, I later found out that I got betrayed by someone close to me. It probably doesn't make any sense, and it probably didn't happen to you, but just in case this helps I thought I'd write this.