Cannot execute a shell script though permissions are set correctly

We just migrated our servers from RHEL 7 to RHEL 8. Now the shell scripts that were working fine under RHEL 7 by being called directly from the command prompt are not working on RHEL 8. The permissions on the script files are set properly.

Example:

$ ~/scripts$ ll yy.sh

-rwxr-xr-x. 1 oracle dba 20 May 31 08:32 yy.sh

$ ~/scripts$ ./yy.sh                     

-bash: ./yy.sh: Permission denied

$ ~/scripts$ cat yy.sh

echo testing script

When I put bash in front of the scripts it works. But on the RHEL 7 server I did not need to put bash in front of the scripts:

$ ~/scripts$ bash ./yy.sh

testing script