Gaps in Cura's Slicing for Monoprice Select Mini V2
If you enable the option "Coasting", the extruder will follow the extrusion path at the end of switching to the next layer or the next section, but will not deposit any material as it uses the build up pressure in the nozzle to deposit the final bits. This shows up in your G-code representation by empty (non-depositing) gaps (in reality, when fine-tuned correctly, will be filled).

E.g. sliced without "Coasting" enabled:


E.g. sliced with "Coasting" enabled: