Artifacts on outer wall

[Lenyo]

Very similar to this issue:

Why is my simple box shifting in layer?

Well, you are on the right track. Situations like these rarely have a single cause. I often compare this hobby to baking rather than science because, like in baking, temperature, time, and humidity can have varying effects, even between events. I suggest doing a simple test. To save time, change the layer height to 0.28 to speed up the process. Then, enable the “silent” mode in the slicer settings to slow down all print head movements. While it’s true that this adjustment can be made in the spe…

See @Olias first post in there for a great guide on fixing it. PS: I suspect wet filament as it causes more filament to extrude than necessary due to the moisture boiling and pushing out extra filament (especially during travel) which presents as walls that look like this.