Sorry for my bad english, i'm ukrainian. But ill try to subscribe that strange bug or maybe it some kind of mechanic? My builder running out of oil for a sec then return to build one piece of ladder (or every builder job i didn't check), some cycling action. But miner can do job in oil constantly without going out from it (building priority off), but if i turn on building for this miner he start to going out from oil after every title mined like a builder did. Hope u understand what i trying to say =) Link to video on Google Drive Oil_Dig_Build_Bug
Steps to Reproduce
Constructing ladder (another stuff) in oil by dupe with building priority ON.
This issue has not been confirmed by a developer yet.