Routing Break when swaping a large amount

[RitzyDevUK]

Not sure exactly why this happens, but if you quote large amounts the routing breaks.

Take this example:

100,000 Matic yields more during the swap then 1,000,000 matic

While this may not seem like a major issue in this context, it is when you have a smaller amount of liquidity, and your using mixed routing for v2/v3.