Target collection not found

Unfortunately, the Sorter instance (the one which creates that warning) is the one we have to refactor (the code is old and has other bugs), it's already in my todo list, so I hope to update it soon. For now, I can only check for undefined and print empty string, but is pointless

Hello anything new on this? I have the same warning now and i can't drop the image block. Invalid target position: Target collection not found, Target is not droppable, accepts [undefined], Component not draggable, acceptable by [undefined] This has worked before and i can't find a mistake in my code.

@navewi, unfortunately, didn't have time to work on this :/