Layer shifting trouble shooting

Hello y’all,
I ve been encountering a problem of layer shifting ONLY WITH THIS PART. I havce printed dozen of parts looking more complex before and after that, but the problem only occurs with this one.

Here is what it looks like:

I have the exact same part with a Groove instead of a lip, and it prints well.

Any Idea?

Best regards,

What printer are you using and what speeds are you running at?


It looks like the part is warping and the warp is either exacerbating the issue or creating it. This shape builds a lot of forces. A brim may help, enclosure or glue stick or some combination. Print speeds and temp will also influence the whole thing.