Do you have in serwer config (silent.cfg for example) command: exec mapvotecycle.cfg and do you have this file on serwer?
Here you have a example file mapvoting.cfg
// silEnT mod - Sample MapVote cycle file
// Each map in this map order is executed whenever there are no votes for a map, // otherwise, the map that gets the most votes for is played set d1 "set g_gametype 6 ; map oasis ; set nextmap vstr d2" set d2 "set g_gametype 6 ; map battery ; set nextmap vstr d3" set d3 "set g_gametype 6 ; map goldrush ; set nextmap vstr d4" set d4 "set g_gametype 6 ; map radar ; set nextmap vstr d5" set d5 "set g_gametype 6 ; map railgun ; set nextmap vstr d6" set d6 "set g_gametype 6 ; map fueldump ; set nextmap vstr d1" vstr d1
I also had this issue. On the next map after !crazyspeed the value of speed is set to 0. In default map config you must set a default value of speed (300 if I remember) and after map where !crazyspeed was on the speed will be normal, you will be able to move . With !crazygravity is no problem, after it (next map) the default value of gravity is set.