This is related to the URL - app#/library/variables/LibraryVariableSets-81?name=…
Please note that it is not showing the “Open Editor” link. The version of Octopus that we are using is v2018.10.0 LTS. Thanks.
#issue #ui #bug
FYI, if others hit this also, one not super easy workaround is to find the element you are looking for in the Chrome developer tools and then set focus (inspect > find the element > set focus).