Color styles are not showing

I have an issue with color styles not being shown in the design panel.
When selecting layer, the color appears only as a hex code, with no assigned style (even though I know layer had a style assigned before!). If I select layer above it , e.g. the frame in which the layer of interest is nested, then color style is show with correct name. Does anyone encountered same problem?

3 posts were merged into an existing topic: Variables from an external library added to the file are not showing up when trying to assign them to a value of a local variable