Sorry we can't tell you what is wrong based on this rough information. It could be your Unity Configuration or the OPC Server configuration .....

To be able to check it we would need an example based on an OPCServer we can test with.

Please try to rebuild your problem based on UaCPP C++ Demo server (will send you a download link for this test server in a private message later).

Please upload your project where you can reproduce your problem based on UaCPP Demo server here:  https://game4automation.com/send 

We are preparing a new release for end of next week and it is planned to fix this.

Please try to change OPCUA_Node.cs like this (about line 364):

We already changed that for the next relaease.

Hmmm... does it directly happens when you open the project on the new PC or only if you start the simulation?

We just implemented a new upload service. 

You can upload your project here: https://game4automation.com/send

First picture shows that your project was still importing something and not ready to build. 

I am able to build this scene based on the current release.

You need to make sure that cadimport is not part of your build because it is an editor only function and uses editor classes.

Usually it is done by excluding cadimport in the dll settings. This should be the case in your project. Maybe you referenced cadimport.dll somewhere in your scripts and this is why the build is not running. Please check what you added or changed in difference to the current release.

Mai is info@game4automation.com

You can use Dropbox or OneDrive. I could also generate for you an upload folder if needed.

Hi Martin, your message is received. I will send you a beta for Hololens as soon as it is available (try to get it fixed next week).

You can have a refund any time you want from our side but I don't know how long Unity will accept the refund.

If you start with an empty unity project and re-import our asset from the asset store with Unity2019 LTS everything must work. We check that always before release and it works for hundreds of our customers.

Again, please send us your project and we will tell you what went wrong on your side. This is the only way how we can help you.