Andrew

The `datachange_notification` is called from the network thread. Don't call functions there that block or it will stop your OPC UA connection. You should only store the subscription data in...

I agree, that stack trace not a UA issue. I would of expected you to get a client timeout issue if you did a blocking operation in the callback. @oroulet...

I doubt anyone here is going to grab your entire project and troubleshoot it for you. You need to make a simplified example showing how the `Bit` attribute isn't working...

Can you change the server? Is 8mb of children really a smart design?

> but it looks like we never check if a reponse with more then negotiated messagesizes should ever been send out Should probably at lease be a `log` warning here...

Should be easy to add a test for this in case there is a problem with using control characters in the future.

Read about how python multiprocessing really works. If you are handing UA functions (like subscriptions) off to another process weird things can happen because multiprocessing library has an entire copy...

Another person tried to call UA functions from processes and also got really strange results. https://github.com/FreeOpcUa/python-opcua/issues/883

Are you monitoring 32 tags with 32 individual subscriptions? Or are you using 1 subscription to monitor 32 items? Can you check if all the subscription handles are unique? I...

Title says you want multiple values. Comment says you want multiple nodes? At the moment I can only recommend that you write some simple functions in your user code which...