Robot workbench stopped working properly

The robot workbench stopped working properly. At first everything was fine, I made a gatling laser for both hands on Hell, but after getting lvl 41 (For Science 4) I wanted to put an unreliable gatling laser, so I go to the workbench for robots, open it, put an unreliable gatling laser on my left hand and at that moment it ceases to be available the creation of some things, including the same gatling laser, although there are all the things (trash) and skills for this.




Also, past modifications that required science 3 became unavailable.