Skillchecks don't work on items (medkits/toolboxes/pinhead box)
Explanation: Rebinded by skillcheck key to a mouse button to make it much more straightforward to hit skillchecks. While the center of the skillcheck icon still says "M5", it is not possible to actually hit those skillchecks, even when spamming the correct button.
Steps: Rebind your skillcheck key to something other than space, equip a medkit, and then use it when injured. Will be unable to hit skillchecks and will miss every single one.
Occurs as long as the skillcheck key is different
Reach out to me if you need any more details! Badly want to be able to use medkits/toolboxes at some point :)