Hi!
I have recently heard a lot of complaints from players on GunshipPenguin's Hungry Games server (Hostname: minetest.gunshippenguin.com, Port: 30001) who were apparently unable to sprint because the use key ([E] key on default on PC version) is not available to them. This server has the Sprint mod installed and is configured to let you sprint while you hold down the use key, so this is crucial.
An alternative would be to configure this mod to use double-tapping the forwards key instead, but many players hate this. And it does not fix the real problem that the use key is unavailable.
Can anyone playing on a mobile device (such as tablet) here confirm this problem? Also, which version or build of Minetest did you use, where did you get that from?
I am not playing on a tablet or similar by myself, so I can't talk about myself here.