Legacy GM Timeline stuck on step 0?



Hello, i have no idea why this is happening so i have my object which runs the timeline so in the step event:
timeline_index = tl_cutscene1;
timeline_position = 0;
timeline_running = true;
timeline_loop = false;

then the timeline actually runs but only the code in step 0 of the timeline (note: even if the first step is like 120 or anything higher than 0, the code still doesnt run)
so in step 0 i have sprite_index = something for exmaple
and if i go to step 1 and have sprite_index = something else
step 1 wont run but only step 0 will its so strange is this a bug?
also the room speed is 60