Harvesting gold is slower after newest patches

I've noticed in my custom map where I once had units harvest stuff fastly that it automatically slows down my units to harvest slower than there default walking speed.
How do I get them to harvest like the old way?

Try resetting to default and then rechanging the values. That usually worked for me when stuff changed in patches.

I assume you mean the default gameplay constants?

Yes, right click the value and push reset to default.

well when I make a new map I can make the units harvest fast
but in my old one that I'm trying to update, I tried resetting the custom values but that didnt work.

Has no one every had this problem yet, its very weird, after the first few times a unit harvests it slows down its speed.