Right-clicking, after switching windows, will cause unintentional hotbar switching.

[Native Copper Bits]

I do a lot of alt-tabbing during my playtime (alt-tabbing works a bit differently in my Linux machine, but the concept is the same), and whenever I jump back to my game, rightclicking causes me to switch off of my held item to something else in my hotbar.

For some reason, when I switch windows and start scrolling (like in a website), Vintage Story will "store" those mousewheel inputs. Upon rightclicking, all stored inputs will initiate, and usually selects an item, depending on how much I scrolled; switching windows and scrolling down once, will cause the hotbar to go down by one, upon rightclicking.

Playing Vintage Story through Arch Linux, with dwm and the window manager. Should be very quick to recreate the bug.