I guess you lost track on JUCE “bugfixes” / breaking-changes.
Check this: Transition from 4.1.0 to 4.3.1 and AAX I/O issue
Summary,
From 4.1 to 4.3 there has been changes to the order. and they WILL break again in next release.
So you might wanna check the develop branch that allows you to override the Ids and keep your plug-in compatible.