Forge version 10.13.2.1230
Botania version 154
Issue not present on previously used version (143)

When entering other dimensions (Nether and Twilight Forrest were tested) the Sojourner's Sash doesn't allow the player to go up one block without jumping. Function does not work when re-entering the Overworld. Logging out and back into the server resumes sash function, until you enter another dimension again.

Edit-After some more testing I was able to find a few more things out:
When entering the nether in any form (morph), sash doesn't function. Functionality returned after changing into a different morph.