Wagstaff machinery not spawning after first been broken down

After activating the lunnar rifts the wagstaff machinery spawns in the usual time, however after having it broken down a first time it doesnt spawn anymore in the world.

While replicating the issue in other worlds it was also noticed that the machinery only spawns two machines instead of the usual 3, this did not happen in the first case,in this first scenario both the activating of the rifts and the spawning of the first machinery took place before the last two updates( [Game Update] - 593060 and [Game Update] - 593204 ). The rest of the worlds generated to check this bug only generated the said 2 machines, and they were generated after mentioned updates.