Qnap Key for square lock with protrusion

The only Qnap key model on this site wasn't working for me. Dimensions were right, but my Qnap lock has a protrusion on the corner. Thus, I updated it to accommodate that protrusion. 

When printed using 0.4mm nozzle, the key looks like it can go in all 4 ways but that's not true. Only one way it goes in easily, without applying any force. Sadly, tolerances are too tight to avoid it. I preferred it to print easily without a nozzle change than to force nozzle change or to make it go all 4 ways, but risk breaking it in the lock. It was deliberate choice of which flaw I can live with, because I could only make it flawless on resin printer using ABS-like resin, but most of people here doesn't seem to have one, and it would take more than 10 minutes to print that way.