Cannot delete page in Neos 3.015

Hi guys,
Currently I face a problem with delete page in Neos. My Neos version is 3.0.15. I have configure two language and two workspace. When I delete the page in backend, it shows the success flash message. I also look at the console log and see the request is success as well. When I reload the page, the page is still there. I see one reported issue at GitHub (, but I do not know it is relate with my issue or not. Could someone provide some tips to fix that.
Thanks in advance