Problem with clock!

[trep]

I couldn't see clock on lock screen.

Restarting device is working but temporarily. (about 3hrs later it dissappeared again)

Today

Yesterday

I am using clock face which Samsung didn't provide us(M31). 

But it worked fine till yesterday. 

Anyone facing same issue? 

[diweshkumar]

I have also red mountain wallpaper

[trep]

That's lock screen wallpaper by 'dynamic lock screen'.

[diweshkumar]

Yes