As you can see, my end just started having this weird issue, actually the nether started having this weird black giant squares on the same place that the end, just that the nether has the textures fine, the only world that seems to be changing the textures is the end, I tried a radiusrender but it only extended the problem. I´m using paper 1.14.4 and Dynmap 3.0b5

This is my template for the end:

• name: world_the_end
  title: "The End"
  maps:
  • class: org.dynmap.hdmap.HDMap
    name: flat
    title: "Flat"
    prefix: flat
    perspective: iso_S_90_lowres
    shader: defaultscheme
    lighting: default
    mapzoomin: 2
  • class: org.dynmap.hdmap.HDMap
    name: the_end
    title: "Surface"
    prefix: st
    perspective: iso_SE_30_hires
    shader: defaultscheme
    lighting: default
    mapzoomin: 2

Is this a bug or a config that I´m doing wrong?

Can you pastebin your configuration.txt

Check your texture pack

Thank you for your reply, but I have not change the texture pack at all, anyway, how could I check that the default is being used?

Check your texture pack