script appears to run with no progress

This script is to find a list of files stored in a text file, and if the files are found, copy them to a specific location. So far I have had success running the portions up to but not including the portion that actually copies the files. When I add the code to copy the file, starting with exec, the script no longer appears to work and makes no progress. I would like to understand what is locking this script up and how to make it work correctly. Thanks! #!/bin/bash #Find files from a list in a file and copy them to a common folder mapfile -t filelist < filelist.txt for file in "${filelist[@]}"; do xargs find ~ -name '${filelist[@]}' -exec mv -t ~/Document/foundfiles/ {} +; done