Unfortunately no. It is normal though, and they are called aerial roots designed to anchor the plant and support nutrient uptake from the water column. You may trim them or position a plant in front of the Ludwigia to hide the unsightly root growth.
That is a good time to prune. When the base gets ratty full of root shoots, pinch off all of the clean tops and pull up the roots. Replace where the rooted stems were with the pristine tops and they will take root and grow. This cleans up the look. Stems are a lot of work, and pruning is one of the most important wats to keep a clean look.
^ yep. Or I take my curved scissors and come down and snip off the roots. Then I do my weekly WC and suck up all the aerial roots...keeps it neat and tidy.