6.1 plothole?

[Hasrat]

The question of asking 'how did Azdaja traverse the void' is rather easily answered with 'very poorly'.

The question is not "how did Azdaja traverse the void."

The question is "how did Azdaja traverse the rift between the Source and the Thirteenth (colloquially known as The Void)."

The "and then got lost" part is unclear, as Y'shtola's explanation indicates Azdaja should've gotten lost between worlds. The "guiding agent" comment indicates that traversing a voidgate without that guiding force can leave you adrift outside of the reflections.

You are confusing needing an actual literal guide to get around once you're on the Thirteenth with the need for some means to guide any being large or small to actually make it there in the first place.

Voidsent do not need a guide in the Source, but they do need to be guided through the rift to arrive on the Source from the Thirteenth (through a voidgate). Presumably, this works the same in the other direction. To which, Azdaja had no such means of being guided to the Thirteenth.