If you use our LinkedIn plugin, then you have already encountered the fact that when adding a loaded candidate to a selected position, you choose from a list of available positions.
This list does not offer all your positions at the start. If you only scroll through the list, you will find that it offers only the last few, so it may happen that you will not find the position you have chosen there by simply scrolling. This is desired behavior for faster response and loading reasons. The list actually contains all positions and you filter them by starting to type the part of the position name where you want to assign the candidate.
Here is an example showing this behavior:
The same principle of searching for positions can be found, for example, in the Candidate Database section of the Positions filter.