Dynmap Empty when zoomed out.

[IngeniousCoder]

Issue Description: Dynmap is EMPTY at default zoom despite fullrender and world generation completed

• Dynmap Version: 3.7-beta-5

• Server Version: paper 1.20.2

• Other Relevant Data/Screenshots:
  
  Dynmap when loaded into the site.
  
  Dynmap beginning to render once zooming in
  
  Dynmap partially loading at certain zoom
  
  Dynmap only loads after zooming even further

• Steps to Replicate: Literally just start a new fullrender of any world.

[x] I have looked at all other issues and this is not a duplicate
[x] I have been able to replicate this