The rest api add-on works in with version 1.5.3 but when I upgrade to 1.8.1 or 1.8.2 the data stops being ingested into splunk. any idea why?

I've got about 10 or 12 rest api inputs setup in the add-on that are all working fine with 1.5.3 but stop working whenever I upgrade the add-on to 1.8.X is there anything I need to be changing to make it work? I'm on splunk 7.3.1 currently with RHEL7.4