Discovery 2026 R1: Material assignment is persnickety and inconsistent

[pete]

Two issues:
1) Upon startup with a new design, as a very first step: You can change the material from the default steel to some solid like aluminum, but if you try to assign a fluid like water or air, the interface does not respond and simply keeps the original solid. I can't seem to find an error message. 
2) Again starting afresh, if you Design -> History Tracking -> Try and change the material:
You get two messages. and .
However, if you simply make a 3D object. Then you can change the material with history tracking still enabled. Clearly I changed the material with History Tracking enabled. You can also make it a fluid. 

Both of these seem like simple bugs. Or at a minimum an unnecesary constraint on a workflow. 

[Charudatta Bandgar]

Hello Pete,

 

I am not able to replicate this, nor have we come across this issue, Can you elaborate how you are defining the material? Are you doing this after defining any material definition?