Dock not accepting items from drag and drop.
Greetings Apple community. after upgrading from Mojave to Catalina 10.15.4, my mid 2014 MacBook Pro 15 inch no longer allows to drag and drop items onto the dock. Have tried many ways including restarting, restarting in safe mode, then reverting back to normal mode. And finally resetting all dock preferences from the terminal app. If anyone knows how to fix this problem please provide some support. Cheers.
MacBook Pro 15", macOS 10.15