FOSS gamedev and creative worlds

i went a loaded up 0.4.9 and i couldn't move so i try double click the top bar to make it smaller and larger that worked but i'm not sure why i would need to do this in order for it to work, does any one know why?

*this is only in the main menu*

Maybe minetest wasn't the window that was in focus. I have had this problem at times with different programs. Sometimes windows will even say that the window I am looking at has the focus but I can't do anything until I click on the window and then everything is fine. Hope this was the problem that you were having. :)

EDIT: I had to modify a word so it made sense. I bolded what I changed so you can see what a stupid mistake I made. :)