Invalid track checksum

[Boom]

Hello,

I'm in the process of creating track to the Speedway Turbo Sliders, but there is a problem with warning invalid track checksum. I have been comparing trk files of my track and of track that is correctly working and I don't know what is wrong.
Here are images of folder, trk files (first one is good, second doesn't work - mean work but with warning and don't save records) and warning:
- https://image.ibb.co/ctfvP5/folder.png
- https://image.ibb.co/e526xQ/trk_bydg.png
- https://image.ibb.co/kM9BxQ/plik_trk.png
- https://image.ibb.co/jUg245/ts.png

Can you help me ?

[Whiplash]

Did you even save the new track with the editor?
And pattern in .jpg format is just a wrong thing.

[Boom]

Yep, forgot about editor. It was it. Thanks!