If a build have a manual stage with a build variable, during the resumed build, bamboo provides a window to override this variable before continuing the build. This works fine on normal occassions. Now if we take a backup of an instance say version 5.3 with a build paused at the manual stage, and then use this backup for an upgrade to 5.7.x, trying to resume the build will just pop up an empty window.

In Bamboo 5.8.1, it pops up a window with a message "There is nothing to customise in this plan configuration". See the screenshot