Cant go up replaced ladders until reload/Placing Heavy wires over ladders/Drywall over ladders

I'd also like to add that I can see the same behavior with Heavi-Watt Conductive wire. They can't be built or merged with wires underneath ladders.

File attached. I'm trying to replace some ladders and am having the same pathing issues. It seems to trigger after a few are built. You should be able to reproduce it by upgrading some ladders.

 

 

Plucky Spacestation.sav

Again? We had this already a while ago...

10 minutes ago, SharraShimada said:

Again? We had this already a while ago...

Last patch introduce a new thing : we can now build plastic ladders over normal ones and it will replace them.
New change, old bug back ?

3 hours ago, Siromatik said:

Last patch introduce a new thing : we can now build plastic ladders over normal ones and it will replace them.
New change, old bug back ?

We can also build tiles over ladders and ladders of tiles now, so this probably introduced different flavour of same bug.

I have the same pathing issue

Can confirm all of OP's issues here, as well. 
Regular tile can be assigned to replace ladders.

Noted that tile visuals along ladders are acting as though the ladder forms a tile corner; but I don't know if that's new to this update. 

2 hours ago, Grimm_Himself said:

Regular tile can be assigned to replace ladders

In [Game Update] - 355385 :

Quote

• Ladders and Tiles can now replace each other directly

This is an expected behavior. Problems are coming AFTER you replace it, like pathfinding, wires, etc...