Has anyone else had trouble with Cloudflare R2?

Last ditch tech support question, but was wondering if anyone else has run into the following issue with R2: When transferring a moderate amount of files (~ 50+), the last file often takes a very long time to transfer, even though it seems like it has fully transferred.

For example, here's the rclone output:

  Transferred:      146.271M / 146.271 MBytes, 100%, 2.600 MBytes/s, ETA 0s
  Transferred:          161 / 162, 99%
  Elapsed time:        56.9s
  Transferring:
   *                          my_last_file.jpg:100% /24.872k, 261/s, 0s