Blurred Tilemaps even with Nearest Sampling

So recently i started a new project and as i added some tilemaps i noticed that they were blurry. I thought the Sampling option was in Bilinear or Trilinear but it is in Nearest. There is no effect applied or anything like that :/

Here is the File: dropbox.com/s/nttp6kucbvqxa0q/Test.c3p

thanks for reading my topic, i hope we can solve it :)

Recently I noticed that the problems have something to do with my machine in particular, and not with construct. The problem seems to disappear when the project is open on another computer or on an online platform.

I would guess your system only supports WebGL 1 and not WebGL 2. With only WebGL 1 only power-of-two size images can be tiled, so Construct is forced to resize the image to a power-of-two size, which degrades the quality. WebGL 2 supports tiling any size image so doesn't have to do that. Devices that only support WebGL 1 are pretty rare these days!