Hey there, I know this topic is recently discussed on reddit or other forums, but I am wondering if you also have this issue since March controller firmware update.
What I tried to solve this is reset Windows to factory settings or installed an older version of Legion SPACE. None worked out.
What helped for at least 3 minutes is reset the controllers to factory settings with RB + Legion R + RS (when having FPS turned on and off). But the left mouse click at M1 changes to ESC again, always when I restart Windows or change some settings at Legion SPACE. Although in SPACE it says M1 is assigned as left mouse click but it still behaves as ESC.
Other people are reporting even a change of the legion controllers by Lenovo did not solve this issue. Others again report just a reinstall of the SPACE worked out, but not for me.
Do you have any further advice? Or should I just wait for the upcoming controller firmware?