My members just reported it is working now with v1.1.3
Why v1.1.4 ? Because that is the only version that had a changelog message saying "IPS 4.6.x compatible" so I thought I needed that.
However, I had to manually install it by visiting the webpage, clicking "See Changelogs" to previous version 1.1.3, then clicking the Download button.
When hiding poll results was not working, that was when the plugin was an old version v1.1.1, sorry for the confusion, but the issue still remains for others likely trying to install from AdminCP Marketplace, which only lets you Install the latest version (which is missing possibly according to IPS Staff reply above)?