Adobe Acrobat is not saving changes in the Quick Tools bar

Hi @Shihab283650649jj8 

We apologize for the delay in response.

Acrobat and Reader optional update 22.003.20322 is now available. This update will be automatically pushed to all existing installations of Acrobat and Reader. If you haven't got it yet you may manually trigger the update early by opening the application and going to Help > Check for Updates>reboot Acrobat.

More information about this release is here: Release Notes | Adobe Acrobat, Reader

If it still causes the same issue, then 

Run this cleaner tool to remove the existing installer and application’s file traces:

https://www.adobe.com/devnet-docs/acrobatetk/tools/Labs/cleaner.html

Download the Acrobat installer from here:

https://helpx.adobe.com/acrobat/kb/acrobat-dc-downloads.html

Let us know if the quick tool disappears again. 

Thanks,

Akanchha