In the northern hemisphere they go anti-clockwise and in the southern they go clockwise, though I suppose there will always be a few rogues. You can always tie them in to your canes very loosely to give them a start. Your missing tips could be mechanical eg wind damage or more likely may have been eaten by slugs/snails who love them – check for those. From what I can see it doesn’t appear to be weed killer related. The beans will grow new shoots from leaf nodes, so expect two or three rather than one main shoot, but it will take them a while to do so.
Good luck
Jan