Disappearing shortcuts problem

[gadisam]

I have Samsung Galaxy S4 with Android v5.0.1.

Until a week ago my Android version was 4 dot something, but then my phone (unfortunately) upgraded itself to 5.0.1, and that what's started the whole problem. From that moment, every shortcut that I put on my screen, whether a speed-dial shortcut or a URL shortcut, disappears after some time. That is, I create the shortcut, put it on the screen - and suddenly it vanishes.
After a week's experience, I can definitely say that it happens when:
1. I install a new app.
2. I turn my phone off and back on.
3. I engage airplane mode and then return to normal mode.
I believe there are additional scenarios in which the problem occurs, but I wasn't able to define them.

When it does happen, I can clearly see it happening - one moment the shortcut is there, and then - puff! It's gone!

This seems to be a bug in the operating system, has anyone experienced it? How do I solve it?

 

[belodion]

Try first a Cache Partition wipe.
If no go, try Safe Mode.
If still no go, get back to us.

 

[gadisam]

Can you please elaborate on this?
How do I wipe Cache Partition?
How do I go to Safe Mode?

 

[belodion]

Welcome as a new member.

See these, with thanks to T-Mobile:

https://support.t-mobile.com/docs/DOC-27777

https://support.t-mobile.com/docs/DOC-27781

 

[gadisam]

Thank you, I think I'd better first try to install a new launcher, if no go I'll try your solutions.

 

[gadisam]

Installed a new launcher, problem solved, thank you