I'm using switch 1 and switch 2

Both switchs are placed on the dashboard to control relay on IO board

The problem occured in both switch, so I'll explain only switch 1

*Advance setting for switch
 -Retrieve on/off value using method -subscribe for timeseries
  This is bcos, when I open 2 same dashboard on different PC,I want both switch state to be updated
  Let say, when I click switch1 to ON, on PC A, same switch on PC B must be updated to ON

 -RPC set value method - setSw1Value

 -Parse value function - return data ? true: false

 -Convert value function - if(value) return {'DO11': '1'}; else return {'DO11': '0'};

When swicth1 on PC A click to ON
- IO board will receive v1/devices/me/rpc/request/xxx  {'DO11':'1'},  three times with different $request_id(xxx,yyy,zzz)
  If dashboard browser is increase to 3 browsers
   v1/devices/me/rpc/request/xxx  {'DO11':'1'} will appear 4 times with different $request_id

  In case of TB original switch, eventhough the opened browser is 2 or 3, IO board only receive twice of
   v1/devices/me/rpc/request/xxx  {'DO11':'1'} with also different $request_id
  -- I dont understand why twice, why not once on every switch operation

- then IO board will switch ON the relay and publish v1/devices/me/telemetry  {'DO11':'1'} on every 
   v1/devices/me/rpc/request/xxx  {'DO11':'1'} for timeseries updating purpose

When switch1 on PC A or B, clicks to OFF
- same flow happened as above

From my observation, with 2 browsers opened, when I click rapidly ON-OFF-ON-OFF, may be caused by time lag,
switch1 will go ON/OFF without stop....eventhough I stop clicking the switch  

In case of original TB switch, bcos it's only send request twice(should be once?),non-stop switching didn't occurred.

Very difficult to explain...but non-stop switching did occur everytime I click ON/OFF rapidly
....didn't occur if clicking is done slowly with time lapse, let say every 1 second