Sojourners and Globetrotters sashes are giving no jump boost, have plenty of mana in inventory. Lexica entry is unchanged and I saw nothing in changelogs to explain it.

Running Beyond Reality: Farscapes pack from the AT launcher.

have you tried it with just botania installed?

Just tried, sash works as normal, jump boost works, will do some digging around to see what mod is interfering with it.