Strain Data Failure with LeafData It’s getting confusing now, but let’s back-track one step first. LeafData is the software system built for Washington by MJ Freeway – who now calls themselves Akerna. It’s the same actors, with the same problems – on their third or fourth name (don’t forget MTech). TL;DR The Akerna/MJ Freeway/LeafData system in Washington was upgraded to version 1.37.5 on July 15th, 2019. That upgrade was intended to fix a lot of problems – including one of referential integrity.