Yes, I can see that script has been shared with the user, even I have checked on his account, It can be seen after sharing the script.
When it comes to running the flow that I have created and shared with the user. The script is not executing, basically giving an error as not found, not shared or deleted.
Yes, I have tried to run manually, It asks for permission, and I'm allowing it. But not running the script. When I click the run permission again, it keeps asking me to allow or deny but no executing the script.
The script runs normally by me but not for a user.