You provided the events information, I need the log information that shows the cBot stopping and new trades opening after it has stopped.
Possible Cause
After some further investigation, it looks like when the command to stop the cBot happens, there is a delay in stopping the cBot and trades can still be sent to the broker, please see the image below where the cBot was started, a signal to stop the cBot was given due to the equity target, but trades still opened before the cBot had a chance to stop.
If this behaviour was not in the previous version of cTrader then we need to fix this
I have changed this post to a bug report and will fix the issue