It happens a strange behavior on my terminal where I have opened several charts and sometimes two or three on the same symbol (but different EA): when I remove Expert from one chart in the other charts of the same symbol a "Waiting for update" label appears, an error "Cannot refresh history " appears and a random chart event is fired. In these charts I have some buttons and one of these closes all the opened orders .... Let to you imagine what can happen.
As additional information, first I magnify the chart on which I want remove the EA, remove the trading system and then I reduce it to mosaic togheter with others.
Is it a platform bug??