Windows 10: Microsoft Store and apps downloaded from it don't have icons in the task bar

As you can see in the gif below, the Microsoft Store and it's apps don't have icons in the taskbar. This has been happening for a while.

:)

 

microsoft app store

How to run apps that are downloaded from Microsoft app store on multiple PCs without downloading multiple times.

 

small app icons at the task bar





As you can see in the picture,
my store icon is surrounded by my theme color, and the real icon is very small
This appears on other store apps like music, calc...etc
what can I do at this situation???

 

task bar icons blank

After applying the november windows 10 home update three of my task bar icons have become blank sheets. The ones changed are edge, store and wunderlist. The remainder are fine. The icons of the three appear correct in the all apps list. I have tried
unpin and re-pin with no change. The three applications work correctly and start fine from the task bar. It is just hard to remember which application is which blank. Note this has happened on my hp laptop which was upgraded from windows 8.1, My desktop
which has windows 10 professional does not have the problem. It was upgraded from windows 7 professional.

Any suggestions would be appreciated.