Bug in calculating shipping based on grams

Hello,

I would like to thank you for this kind of great plugin for starters. I am planing to buy advance one in the future. But there is one thing to be fixed and I am sure it is simple for a php coder.

I use this weights to calculate costs but there is one it does wrong.

1000|1.82|1
2000|2.10|1
5000|0.00|1
Here I want it to be free shipping after 2000 grams however when the price is lower than the first two ones, it automatically shows the lowest one and does not change how much you add.

Yes, logically the price should increase as the grams get higher but after certain grams I want it free.

Please let me know how I can fix this. I understand you have no support for this but I hope this is something should be available for us to use.

https://www.ads-software.com/extend/plugins/awd-weightcountry-shipping/