Last base, arena 0011 - is this normal?

[Łąm]

I'm not sure what I'm supposed to do at level 75, so I went into the mazes hoping to maybe get into the body and escape the system (that's the goal, right?). For the third time in maze 3, I'm stuck in the same spot:

https://steamcommunity.com/sharedfiles/filedetails/?id=761892497

I'm on the path from "1 square, 4 dots", from now on called 1-4 and here we have little 1-5 next to a big 3-2, both pointing at some random 2-5. Going in, you're fighting two low level ships and unlock 3-3. There the path ends. Through the walls I can see 3-1 (that's where 2-5 should be leading but the one on the screenshot isn't, plus I found another 2-5 somewhere else!) and 3-4 with the actual maze end. No sign of 1-5 (aka way to 2-1) anywhere.

The screenshot is taken after shooting switch 1-3 once so I can go back, in the direction opposite to where the arrows point, but there's not much to do there, several enemies and some switch to shoot but it doesn't open enough doors, so I can only get back to 1-1.

I've tried shooting the 1-3 switch more times and found out it has at least 3 states - one is complete block of this path, one is opening both sides, and one is leaving one side closed. I guess that opens one of the star rooms, but doesn't change anything for the 1-5 situation.

I went there first in the beta 1.14 and now trying again on 1.13, no change.

PS. In the end, I went around doing everything in the wrong order several times, more often than not finding dead ends that were supposed to be unlocked by something else... But I made it! I never found where 1-5 was leading, also I never found 2-4 (just went from 2-3 switch to the OTHER 2-5) Brute force attack ;)

Another thing I noticed was the position of "1 triangle, 1 dot" arrow which presumably I was supposed to go to after square 3-4 (who knew?) And then turned out triangle 1-4 is the same as 2-3 or something like that :)

Makes me think it's all not a bug but f*** up on purpose only to mess with me!