[ORAS] Proven (not confirmed) way to Shiny Chain using DexNav!

[Jack]

Quote:
The chain can break if there is not enough areas surrounding you for the Pokemon to appear.

I actually had the same experience when chaining, so I think we both may be on to another nuance. I guess you just need multiple patches of medium sized grass for it to work all the time. For some reason, my chain randomly breaks when I use one very large patch though. I'll have to try the one large patch of grass when I continue chaining shiny Pokemon later today.