[General] bug with view entire map?

[stan0033]

I have more trees on my map and when I click on "view entire map" they become blinking blurred lines? :O Can you help me?

 

[Talavaj]

That is a gpu error, can also be caused by incompatibility or faulty errors but given your situation I'd say it is just your gpu exceeding its texture fillrate which results in the visual glitches.

TL;DR you can't probably do anything about it, I'd say don't do it.
View entire map function is EXTREMELY performance hogging, the tileset does not have any texture filtering in order for it to always stay at the best possible resolution and as such trying to view the entire map results in a morbid amount of data to be rendered very likely to overheat your GPU as well.