Hi Oaslan
Can you please say which version you're using? I've never heard of a problem like that before, but I have very little experience with the version that was just released.
This should be related to property ActivateManualMode_EDP that you can see in Composer. So there's 1 property per equipment. It could have been changed by someone in Composer, by someone else in the screen, or by a custom piece of code if you have some. I don't remember for certain, but I think the Operator Dashboard allows multiple users to open the same equipment at the same time - it I'm right, this would be my first suspect.
One idea you can try to debug this is to add a subscription on the equipment based on Datachange and this property (ActivateManualMode_EDP). And inside the code, save a message somewhere, for example an error message in Scriptlog that you can easily filter for. Example :
logger.error("DEBUG ActivateManualMode_EDP - was just set to " + me.ActivateManualMode_EDP);
Then the next times it happens, you can review the logs (filter for the word ActivateManualMode_EDP) and see exactly when it happened. You can try to find if some specific custom code was activated at that time, if a specific tag value came in seconds before, which users were online at that time, etc.