[Worldborder] & [Dynmap] need help.

Hello, I tried to ask the maked of the Dynmap for help but he however did not know how to resolve my problem so I now ask everyone.

I have had a little problem that my Dynmap had too many tiles rendered and my server did not have enough memory.

I used the /worldborder fill confirm command to render the tiles because the /dynmap fullrender doesn't work the way I want.

I reinstalled Dynmap and had a clean map again.

Here comes my problem: When I try and use the /worldborder fill command then it will continue where it had left of but I don't want those tiles rendered I want it to start at 0% again and start rendering from the beginning.

Sorry for the long post but I did not know how else to explain.

All help and answers are appreciated !