I am currently experiencing this with calc and similar problems with writer. In one session today (a) opening a new instance of writer failed to associate the window with any icon in the launcher. Later (b) a new window was associated with the generic white LO icon. Later (3) a different window generated a second writer icon on the launcher (besides the one that is pinned) and the window was associated with it.
A restart typically solves the problem -- for a while. Generally by the end of the day it will have returned, though.
I am currently experiencing this with calc and similar problems with writer. In one session today (a) opening a new instance of writer failed to associate the window with any icon in the launcher. Later (b) a new window was associated with the generic white LO icon. Later (3) a different window generated a second writer icon on the launcher (besides the one that is pinned) and the window was associated with it.
A restart typically solves the problem -- for a while. Generally by the end of the day it will have returned, though.