Neighboring keys activated on firm keypress

[ilien]

Hi guys. Complete noob here.  Wanted to dive head first into mech keyboard assembly and purchased a KBDFANS DZ60RGB ANSI V2 HOT SWAP DIY KIT. There were a few bumps along the way but now I have something that _almost_ works, however, there is still an annoying issue. When I type a '5', '6', '7', or a 'u' with considerable force, it registers the correct key, but also registers 'yhn' simulataneously, e.g. if i press '6' with some force, it types '6yhn'. I've tried treating it as chatter and tried blowing into the affected switches, but to no avail.. Any advice would be appreciated.

[Tactile]

This might be due to flex of the PCB. Pull the caps and, using the eraser end of a pencil, press on the PCB at various points & see if you can get any keys to activate. As a remedy you can put something (rubber, foam) under the PCB to reduce/eliminate flex.