Why does my Pokeradar chain keep breaking while I'm running back and forth in the grass?

Question

I've been chaining Eevee in Trophy Garden, and twice now, my chain just randomly broke. What happens is I do a battle, catch the Eevee, the chain continues and patches generate, and when I run around in the grass to charge my Poke Radar to get more desirable patches, the chain just randomly breaks.

Is there a reason this happens? I didn't close my DS or anything, so this is really annoying.

Comments

I think the chain breaks if you take too many steps without stepping in a shaking patch.

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I highly doubt this is true, since you can take a lot of steps while resetting for a shiny patch.

Answer 1

With some help, I figured it out.

A chain can also automatically break if the player uses the Bicycle or Roller Skates, if the player scrolls all shaking grass patches off-screen by moving too far away from them, a Pokémon evolves, or an Egg hatches.

Source

I didn't get on my bike, evolve a Pokemon, or hatch an egg, and the random chance of your chain breaking is different, because that happens when you enter the shaking grass, whereas this happened while I already had a chain going and didn't step into the grass. So the only explanation is that I moved too far from the patches, causing the chain to break.

Comments

This literally just happened to me and I have no idea why. I was at my 40 chain of Aron and I have been running back and forth resetting patches for 30 minutes with no shiny. I was just going back and forth for steps and the chain just broke. I was not off screen of all the patches. Do you know how that could happen? I'm literally so upset

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Are you sure you didn't manage to go too far from your patches? If some of the patches were in the same area, it's possible you could've accidentally went too far up, down, left, or right without noticing. This is the only possibility I can think of right now...

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If so I'm really really stupid cause I literally read your answer right before I went back to my chain

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Going back, the patch of grass that I was in was physically too small to have this happen, all the shaking patches would have to have been all vertical on the far right column, (Fuego Ironworks.) Is it possible that they despawn after two patches or more get scrolled off screen?