If a developer has the environment variable COBSW set to +A, (meaning invoke the Animator), then invokes the Server Express Integrated Development Environment (SDE), a debug session starts and attempts to obtain a terminal connection. However, if you have only one license, it fails and displays the message:
Micro Focus LMF - 005: You have exceeded the license limit for this product
This is because the terminal name for the debug session is set by the operating system and is not the same as the terminal name used by the SDE itself. License Manager, therefore, considers the two terminal sessions to be two different sessions, and requires them to have a license each.
You should either tell your developers not to run the SDE with COBSW=+A, or obtain extra licenses.