Comment 1 for bug 1648908

After further investigation, this issue was caused by multiple commits.

First, revision 4185 in the yakkety branch (https://bazaar.launchpad.net/~unity-team/unity/yakkety/revision/4185) causes a delay when hovering over Appindicators.

Due to this delay, if an Appindicator's context menu is open, and another one gets clicked, before the context menu switches to the indicator the cursor is currently hovered over, it will cause it to open in the wrong monitor.

Finally, with the introduction of revision 4187 (https://bazaar.launchpad.net/~unity-team/unity/yakkety/revision/4187), the Appindicators no longer follow the cursor, meaning that a click is required to open another one, resulting in it opening in the wrong monitor

https://vps.tasossah.com/bugs/unity_multimon2.webm