Weird issues with certain model on Cura 4.13.1 (blobs/zits on corners/ only one wall)

[carmamir 0]

Other models are printing fine, but for some reasons here I am having a huge issue with Cura.

As you can see it creates lots of zits in corners and whole wall looks melted (though temps are fine and printed > 800h of other models with this profile).

Tried changing fan settings, infill, flow, temps, bunch of settings, but none of them is working.

 

Wall is 1.2mm (weirdly cura shows that line width is different between external/internal and infill (which is simply a line), extarnal and internal and thinner than the inside...), nozzle 0.4mm

[GregValiant 1,309]

If the model is not proprietary then load it in Cura, set up the slice, and use the File | Save Project command.  Post the resultant 3mf file here.