If you are talking about the spring clips that hold the screens in place, they are seated pretty well down in there and will not move in normal use. If you poke around and catch one of the compression holes, you can snag the clip and dislofge it. Poking etc. is not the proper way to remove spent material. It should be blown free (into the small bag) when it is spent. If it does not blow free easily, heating the load a little and then blowing it right away will unload the tube.
If you dislodge a clip by your mechanical cleaning, you can try to push it back into place with a reversed drill bit or a piece of dowel.
Don't poke around inside the vapor tip... Cleaning should be done with ISO or drinking Alcohol and aggitation. Use the included purple bottle. The directions might help.
ps. Pammy seats all those clips, not the blind guy.