When Snake starts on a tile initially, it prevents game from working.

[soWizardly]

When Snake starts on a tile initially, it prevents game from working. You cannot get the tile even if you move away and then move back.

[SkepticTiqer]

Maybe if you look through the source code and find what you think may be the culprit, I could submit a pull request to fix it.
I will look over the source code later today, and try to add something that may fix it.
I just don't have enough time to as of writing this comment.
Thank you, goodbye for now.