How to select multiple lines for approval in admin task window

Summary:

Unable to select multiple lines to approve in one go

Content (required):

As per this oracle doc (https://support.oracle.com/epmos/faces/DocumentDisplay?_afrLoop=450282566439864&parent=EXTERNAL_SEARCH&sourceId=HOWTO&id=2471920.1&_afrWindowMode=0&_adf.ctrl-state=m9949iz2b_53), currently there is no functionality that supports bulk approval in the system. However, workaround suggested is by selecting multiple lines in workflow window and then selecting the approve button from actions.

Challenge is when I select one line, I can see the action button and its row.

But when I select multiple lines, it's gone or glitches out.

Can someone help me with this?