Thanks!! i have no idea how it changed but it works again

i cannot find the any .log file. but here is the config.ini

whenever i have nothing selected and i left mouseclick i select the item in toolbelt position 1. But here is the joke. Not always. When i have an item selected to build, left click still builds. But when i have no item selected, or a grenade or repair kit that does not build but use, i cannot repair ...