Fails to compile in MSVC

[thecppzoo]

https://godbolt.org/z/EEzeTh

Unfortunately the code does not work with MSVC compilers. Any ideas for a workaround?

It seems the problem is the initialization, there seems to be a bug in which the base class mixin is not allowed for initialization in the constructor:
https://godbolt.org/z/mq2TAc

[thecppzoo]

Created a report with the MSVC people
https://developercommunity.visualstudio.com/content/problem/1110083/msvc-compiler-versions-fail-to-compile-valid-code.html

[atomgalaxy]

Thanks! I'm setting up a vc++ capable environment RN so I'll triage this weekend if I can.

[atomgalaxy]

Fixed.