Hi,
The appearance for locked blocks works differently than for normal objects. Is there any special setting button how to control it? Or is it a common behavior/bug?
Thanks 
Hello - can you post a screen shot of what you are seeing? Is the display mode set to defaults?
-Pascal
Hello Pascal,
here is the screenshot
Display settings = deafult
1 - normal geometry
2 - block object - locked
3 - normal geometry - locked
What I am after - the same appearance for all locked geometries - including blocks… 
Hello - thanks,yes, I see- apparently this is true for curves only - is that what you see?
-Pascal
Oh, yes, confirming this is true for curves only.
Still, I am using blocks for both solids/surfaces and curves. So the same behavior would be appreciated 
Yes, of course! - it is a bug, I assume - I don’t know of any reason to do this. Thanks for pointing it out.
https://mcneel.myjetbrains.com/youtrack/issue/RH-45897
-Pascal