Hi everyone, I have been stucked on the problem which is the colours of the parts in part file disappear when I put them in assembly in the assembly file, even though in the property tree, they seem coloured. Actually you can see clearly what the problem is on the screenshot. Please help me, thanks in advance. (the thing is that, when I open the file of the part as a seperate body, it seems coloured again.)

EDITED BY MODERATOR: Moved to Assemblies space. In the future, please post to the appropriate space when one exists.