Happened on playground.xwiki.org, observed after the 8.4.4 upgrade, after trying to recreate playground.
Behavior: Node1 and Node2 don't get their UIX pages registered correctly. For example, Node1 will have all the UIX registered correctly, while Node2 there will be some missing.
- Node1: http://playground.xwikiorg-node1.xwikisas.com/xwiki/bin/view/Main/WebHome
- Node2: http://playground.xwikiorg-node2.xwikisas.com/xwiki/bin/edit/Main/WebHome
Initially (02/03/2017) we missed:
- AdminUIX and some others
Users were not able to see the Drawer entries (Indexes) or Watchlist menu entry and the Search menu entry.
The temporary fix is to go to the pages: