Extension doesn't work with GM:S 1.4.1763

Question

Unfortunately I'm encountering an odd version problem. We're using GM:S 1.4.1763. Whenever I try to start an almost empty example project I'm getting the following error. It works fine with GM:S 1.4.1757.

I thought it might be a Windows 10 problem. So I compiled the project and tested it on Windows 7 with the same result.

https://github.com/CaKlassen/gmwwise/files/1010428/GMWwise.gmx.zip

Is this extension tested on 1763 and working with it? Might be a problem on my system.

Thanks and cheers

Edit: I have the same problem with GMWwise 1.4.1 and 1763. My coworker running 1763 has the same problem. I'm pretty sure it's the GM version.