Factorio Forums

Trying wave defense in 18.6.
Biters spawn very close, spawners and biters inside walls.
Rocket silo was sometimes not build but on ground as item.
Unable to build at start position because biters too close.
Not every mapseed generated all resources. Most resources were generated outside the walls.

This is different from earlier versions and probably a bug.

Can you provide a save game? are you playing with any mods?

When I try it, it all looks normal,there haven't been any changes to the scenario in a while

Sorry on retry some mod seemed to cause it. It didn't happen anymore when I tried without mods.

It is caused by Resource Spawn Overhaul, report that to their author