Okay. i understand. thank you for the reply. 

Using the sandbox i have tried accessing the asset file directly using the publish url. The url was like this: "https://publish-pXXXX-eXXXX.adobeaemcloud.com/content/dam/demo-assets/sampleassetsexample"But unfortunately i got the "Not found message" I have also tried it in local environment. The ima...

are you logged in as administrator user on sandbox?Ans: yes. are you able to login on aem publisher and verify that asset is still present in Dam folder?Ans: Can you please tell me how to login on aem publisher on sandbox. Do you see any error on aem error log for the time of expiry?Ans: No

Because i have done it as aem as cloud service(locally) and in aem as cloud sandbox. Therefore, I have checked it in the local environment's public instance. The expired assets are still there in the dam. Can you tell me how to check this in the publish instance of aem as sandbox? i mean how to log ...

The assets are not getting unpublished even after re-activating the pages.P.S: I have also tried it in incognito mode and in different browser.

I have created an assets folder in the cloud sandbox. To be specific in this directory: "https://author-XXXX-XXXX.adobeaemcloud.com/ui#/aem/assets.html/content/dam/demo-assets/sampleassetsexample"  I have uploaded 3 images in this folder. Then, i have selected each images one by one and get into the...