A key keeps spamming

Hello Razer community, I recently started to have an issue, where my Razer Blackwidow Chroma v2 started to spam a key. It would suddenly start and keep spamming until any other key would be pressed. At first, it wasn't too bad, the problem occurred once or twice per day. Now, however, I can't even type a single word before my keyboard randomly spits out a hundred "ü"s. My keyboard is now basically useless. I posted here before too, but the answer I got didn't help. I was suggested to try cleaning my keyboard and upgrade to Synapse 3 (which I have avoided as it's riddled with bugs). Cleaning the keyboard is out of the question - I tried this very same keyboard on multiple other computers and the problem didn't happen even once on them. In addition to that - I already cleaned it a month or so ago. So my educated guess would be that the problem lies in software - I tried clean re-installing following this tutorial: https://mysupport.razer.com/app/answers/detail/a_id/1708/~/how-to-perform-a-clean-re-installation-of-razer-synapse-3-%26-2.0-on-windows That didn't work. Then I cleanly uninstalled according to the previously mentioned tutorial and installed Synapse 3. That also didn't work. Any ideas?