After installing Mixw Version 4 (Registered) any attempt to assign SmartSDR DAX controls and saving the configuration causes Mixw Version 4 to crash. I am not real sure why this is happening! If any one out there is using Mixw Version 4 would it be possible to see your configuration for both the soundcard and rig selection?
If MixW is not being updated regularly anymore, you may want to consider FLDigi. It is actively being updated and this is the program Support uses for validating digital mode setup because of how reliably it works with both CAT and DAX..
A new version is out for Mixw4 (MixW4 V1.0.4 05-April-2018) which i have not installed and tested as of yet. Previous requests to the developer have not been answered directly. Rigexpert now owns the software product which is a good sign. It does look like they are actively working on the software according to their errata sheet for the current release.
I agree with you on the longer sound name as the possible problem. I also like FLDigi and it works very well; however since a group of us paid for the new version of Mixw4 we are hoping that the developer has taken into account our wishes for a working program.
I will let you all know how we make out.