Its not your bed levelling on a part that small. It looks like you are depositing more material at that point in your print. It is common for printers to pause slightly when changing layers and it would either leave a blob or excess material in that area. Some slicers randomly disperse these layer changes so the excess material does not stay in one spot. Simplify3D and other slicers have that option. You an also set a “coast” setting to turn off the extruder at a set point from the layer change (it simply stops extruding so excess material is not build up). There is also a setting called “extra restart distance”. I usually set that to a -.20 mm or so and it would basically do a slight retraction at those locations. The best way for you to determine if the cause is at the start of the layer or the end of the layer is to slow the speed down and watch carefully as it prints. You will then see which phase of the print the printer is depositing excess plastic.
