gold mine discoverd ? , bug ?

hi

i had start the gold mine underconstruction but i miss the hammer to build it, then i delete it from cue
then i notice the discover of the Ore was gone allso, is this a bug ?

i have not notice this on other mines because hammer issus was not a problem

if u delete a mine from the cue then you will lose that resource and have to send your geologist out to find it again. And is not a bug.