Hi,
I just updated orekit_jpype for latest orekit release, 13.1.7 and available on pypi. This also includes an significantly update jpype version to 1.7.1 with a number of small fixes in the background. We have previously been on a quite old version (1.5.1) of jpype due to some regression bugs, but these seems now to have been fixed and all tests run fine.
Let us know if you run into some issues with the new version at Work items · Orekit / orekit_jpype · GitLab · Orekit
Greetings!