<p>I am printing using an Ender3 Pro with eSUN PLA+ 215/45 and I am getting this issue on two corners, the other two corners look fine.</p>

<p>Any idea on what can be causing this?</p>

<p>The bad corners</p>

<p><a href="https://i.stack.imgur.com/kr4VD.jpg" rel="noreferrer" title="Bad corners"><img src="https://i.stack.imgur.com/kr4VD.jpg" alt="Bad corners" title="Bad corners"></a></p>

<p>The good corners</p>

<p><a href="https://i.stack.imgur.com/Ras6V.jpg" rel="noreferrer" title="Good corners"><img src="https://i.stack.imgur.com/Ras6V.jpg" alt="Good corners" title="Good corners"></a></p>

Looks like it treated those corners a bit differently in the slice routine.  Normally something like this different treatment would be too slight to matter, but (probably due to the slight overhang?) it appears to have caused some layers to not adhere to the bottom ones and get pulled along to a different shape (red line in image).  (Be sure to check some general layer adhesion/overhang topics too.)
I'd try increasing the infill there (and using honeycomb style infill) or even using a cad software to hollow the interior to essentially a desired infill before slicing if the current infill is important elsewhere.
Moving slower, Increasing the temperature a bit, and/or extruding more material per line and layer if the layer adhesion is due to the slight overhang (although it looks pretty small).