How can I resolve 'no signal detected' on BenQ monitor connected to MacBook Pro M4 via USB-C?

So this is an interesting case. I recently bought a Pro M4 and connected it to 2 BenQ GW2486TC monitors via separate USB-Cables (no docks in between) it was working flawlessly for a day or two. What changed? I connected an HP latop to one of the monitors (for work) using one of the USB-C cables already plugged. After doing this, I reconnected the cable to the MacBook. To my surprise, and after much unplugging, replugging and restarting: whatever monitor is connected to the second (counting from the back, left side) USB-C port just shows: no signal and a black screen. The only workaround is to disconnect and reconnect the cable from the monitor. Disconnecting and reconnecting from the MacBook does not work. Anyone out there with the same/similar problem and hopefully someone who managed to solve it and it’s willing to help?

[Re-Titled by Moderator]