F1 for belt slot 1 doesn't work

[drallcom3]

Botty Version
7.3

Describe the bug
Belt slot 1 is not being used correctly if the hotkey is F1.
Assinging a secondary hotkey (e.g. 9) to belt slot 1 (and changing the config of course) makes it work.
Pressing the F1 key ingame does consume a potion.
Something in the bot script must be blocking F1. Quite weird.
F2-F4 work fine. So does any other normal hotkey.

To Reproduce
Steps to reproduce the behavior:

1. Ingame put belt slot 1 on F1
2. Tell bot to use F1 for belt slot 1
3. Put health potions in belt slot 1 and only there
4. Get hit
5. See log stating that health potion in slot 1 has been used
6. Check belt slots and see that no potion has been used

Expected behavior
Health potions in belt slot 1 should be consumed with F1.