maybe try holding right and jumping from this tile? Never done the map before, just a guess. Usually there's a consistent location to start moving on parts like this.
teeworlds is weird about walking off things, that's why parts that require landing precisely generally have some kind of tile to guide where you should start running. (usually it's for stacking) It feels very RNG otherwise(edited)
You can test on Stronghold, walking off from different locations has weird results. Walking off from further away actually makes you travel a shorter distance sometimes... It's probably due to standing between tiles or something, haven't really put too much thought into it before.
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