Episodex

Hi, I'm building this model in LDD and I run into some weird issue. I'm on Book 1, page 252 where I'm supposed to connect this section to one of the sides, using two hinges. When I connect one hinge though, the other one is off by a tiny marin. But enough to prevent LDD from connecting it. I tried to do some calculations on a paper, to check if the dimensions are mathematically correct and looks like they aren't. So my question to the people who already built this using real blocks: did you need to apply some force on this step? Did you need to bend the section a bit to make it connect? Because I don't know if I should still try to connect it or just remove one hinge and continue. Below are the pictures and relevant page of the instructions. Thanks!