TapModi makes the key stick

[sufftea]

With this script

            KEY_C: TapModi(KEY_LEFTCTRL, Key(KEY_C), Key(KEY_I)),

The following sequence works fine:
LEFTCTRL down -> KEY_C down -> KEY_C up -> LEFTCTRL up

But if I lift LEFTCTRL before KEY_C, KEY_I will stick and start emitting on repeat:
LEFTCTRL down -> KEY_C down -> LEFTCTRL up -> KEY_C up
Result: ccccccccccccccccccccc... (the character under KEY_I) is printed until I press some other button.

---

There also sometimes happens another bug where (probably) my Win key sticks and I become unable to type any text but I couldn't track down what exactly causes it.