Small holes where edges are on the model

[unkempt hare]

Hello!
For some reason my model has these holes as shown in the screenshot ^^;
Is this something that's only visible while editing? Did I perhaps flip some option by accident?
I didn't notice it until today (been working on this model for 4 days now)
It doesn't affect me all that much, since I do plan on exporting the finished model as a gif with the pixelization filter, but I was curious if it's something that could cause problems later down the line in my future models D:
I made a fresh project with a regular cube, and even the cube has those weird edges.
Could it be an issue with anti-aliasing?
If it's just a visual bug, I am able to live with it!
Thank you in advance, and have a nice day! 🫂

[willow socket]

(Result for "texture-bleeding")
If you see thin lines on some edges of your model that should not be there, that is caused by an effect called Texture Bleeding. Some of the color of the neighboring pixels on the texture are visible where they should not be. In most cases, this artifact is caused by anti aliasing (MSAA), a technique to smooth the edges of your model in the render.
There are several ways to solve this:

• If you just want to get rid of the lines in the Blockbench preview or in screenshots, you can disable "Anti Aliasing" in the Blockbench settings. Make sure to restart the program after changing the setting.
• If you want to export your model into Minecraft or another game or application, the effect is often less (and sometimes more) noticeable. To fix it in the model, install the Blockbench plugin Plaster, then select the cubes you want to fix and go to Tools > Plaster. This does not work in Box UV mode.
• Another way to preemptively reduce texture bleeding is to leave a gap between your UV sections. The Blockbench template generator comes with a "Padding" option that let's you do this.