Error when loading custom data types from multiple server in single script

[FlorianDue]

Hey,

im currently developing a project, where I start multiple server from a single project (main.py) file.

Describe the bug

For these server, is wrote some code to generate custom OPC UA Structures from a custom format. However, when i use the
await server.load_data_type_definitions() function, only the first server started will return the correct types.

Screenshots
Here are some screen shots from my example code:

Expected behavior
The expected behavior would be, that both servers can load the same customd ata types. However, only the first does.

Client are also only able to load the types from the first server (if multiple servers are started from a single script)

To Reproduce
Here is a small python project to reproduce the Error
bug_report_python_opcua.zip

Version
python 3.10.14
asyncua 1.1.5

[schroeder-]

In the current design the datatypes are a global variables. I would use the multiprocessing module and a process per server.