Anyone able to explain this track?

Hey all,

Trying to learn a bit about how flights are filed and tracked and found this interesting flight that I’d like to see if anyone could shed some light on. Seems as though this flight had an initial filing that possibly was cxled (see first link), but the interesting part is that the second result (see second link) seems broken up and inconsistent even though the result is arrival at its scheduled destination (see track log & graph for more). … /KIND/KSUN … /KIND/KSUN

Any insight much appreciated!