Instead it stops under or runs into a wall and gives up. I cannot get it to do this totally possible jump with block placing/breaking set to false. When I turn on slowpath it doesn't ever check to jump.

Somehow I found the email to my old lost account.

It does not try parkour in your case because it only does 1-3 block gaps in the 4 cardinal directions, flat or ascending
You have a descending diagonal followed by a diagonal