Hi Lorenzo,
Please do the following and provide me with the results:
1. Create a new project suite and add the mentioned project to this suite. Does the problem remain?
2.
| the strange thing is, this error occurs only if the project is run as item of the project suite |
Does this project suite contain any other project that is running along with the mentioned one, or there is only one project executed when you run a project suite?
3. Post here the amount of RAM that is used by TestComplete and by your application when the problem occurs.
Thanks.