Hi Dear Mai n'tainer,

   * What led up to the situation?

Copying large videos from a NFS mount to a disk.

   * What exactly did you do (or not do) that was effective (or
     ineffective)?

* Open 2 thunar, one on NFS mount, one on local directory,

* drag'n'drop a lot of files by small groups from NFS to local,

* the FOP popup grown up to ~1/2 height of the display and when other files
were dragged'n'dropped, lost it's display (~1/10 of it's content was still
visible at the top, the rest was erased in BG color)

* repeatable each time the number of copy exceeds the FOP height.

   * What was the outcome of this action?

Can't see when each group of files will finish copying.

   * What outcome did you expect instead?

thunar work as expected.