We have a setup with many slaves, one primary master, and a secondary master which can also be controlled by the primary master. It's set to autoswitch to slave role if the primary master takes it over by moving the mouse into its screen. However if you're using the secondary master, and someone even touches the mouse on the primary, it switches to slave role and then immediately back to master, even if the primary master's cursor is on their computer.
The way I understand it, the computer should only switch into slave mode when you move the mouse over to its monitor. Why does it constantly switch even when the primary master stays in its own screen?