1.1.2 too 1.2.6 and 1.2.7，
After the update, the Inserters range only was 2, originally it was 3.The technology has already been studied
I had to go back to version 1.1.2.But in this case, there will be an error on the GUI. There are two GUIs. The upper GUI is wrong, and you can only operate the lower one.

Yeah, I know the UI problem, you can't regret the version once you update It.
Can you send me a screenshot of your settings and in case some steps to reproduce the problem

I sent my archive file on Discord, you can update to the latest version of the mod, place a new Inserters and open the UI to take a look

Between the versions 1.1.2~1.2.5, due to the copy crash problem, I saved the game and rolled back to 1.1.2 before this problem occurred. However, when updated to the latest version, Inserters only had a range of 2 instead of 3.

Fixed, it will come out in 1.2.8 alongside other fixes