Factorio Forums

If you have a L shape turn of yellow belts and try to upgrade it to red by dragging with new features on it fails right after the turn.
As you hold your LMB and approach the turn, press rotate key on the turned tile, and move the cursor to continue, a new red belt line is placed right next to the one you have tried to upgrade.

There is also an issue if there is underground belt that should be updated.

Hello, thanks for the report, I completely forgot about these things, and it makes sense that they behave as you would expect indeed.

So it is fixed (and included in the automated tests) for the next release of 1.1.13