Sasss

I have an issue (which I'm not sure is an issue, but keeps on persisting), that at random times, there is a sound of "alarm" (like car alarm or house alarm) appearing in the middle of nowhere. The sound is repeated for 3 times and cut in the middle. I'm not sure if i heard the sound in-game before. It started to manifest itself in Edgewater, while exploring the Marauder outpost where the guy with the heavy armor and Zoe are. Not sure if the problem started when I wore his heavy armor or when I passed through some random door into the building there. I thought I triggered some alarm, but at that point it started to happen randomly and still does.

Same. For now what I did, is remapped the key to the middle mouse button and it works (for me the right click/blocking works ok, the left click is unresponsive just as you described it).