Images don't typically display properly

[TheZenKitteh]

What steps will reproduce the problem?

1. Create a new image in the game
2. View it

What were you expecting to happen? What happened instead?

Expecting the image to look reasonably like the actual image. Instead, the image usually looks horrible.

What version of the plugin are you using? Type /version <Plugin Name>

AnimatedFrames_v4.5.0-SNAPSHOT

What Spigot version are you using? Type /version

Spigot 1.12 BuildTools: 60

What plugins are you using? Type /plugins

A lot, that command has been disabled on my server. If I must, I will list them but I don't think this issue relates to my other plugins.

Do you have an error log? Use pastebin.com. If you're not sure, upload your whole server log

No errors.

Did your client crash? Upload errors in .minecraft/logs/latest.log as well

No

Additional information? (Are you using Bungeecord? Did it work in previous versions? etc.)

Screenshot of what it looks like in game (two examples):
http://bserverp.mcserver.ws:8123/af/2017-08-04_08.16.34.png

What those images are supposed to look like:
On on the right is:
https://media-curse.cursecdn.com/attachments/172/846/e8558e1fc08803e06930b243087a6ce6.png

One on the left is:
http://bserverp.mcserver.ws:8123/af/Minecraft_diamonds_by_mikasda.png

There are other images on the server and most look reasonable enough (although grainy with artifacts usually).

EDIT: There are more examples on my server if you want to take a look. My home has several images for testing you can find the entrance at -1930 71 1122 and I usually leave the door open. From spawn just follow the road and eventually you will see it. The market (where the other two images are located) can be found via /warp edocastlemarket

The url is: bserverp.mcserver.ws

[stale]

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