fcfe373 created the issue

I believe that this defect is new to this version (Version 7.6.2 (33520)). I am pretty sure that this worked in the previous version.

(1) Select multiple files in an S3 bucket
(2) Select [File][Info]
(Content-Type will be shown as "Multiple files")
(3) Click on the Gear/Down arrow to change the Metadata
(4) Select Content-Disposition / attachment

All of the metadata for the files will now be removed. What should happen is that the Content-Disposition metadata should be added to the files and the existing Content-Type should be maintained.

In my situation, the files have more than one Content-Type. (There are video and audio files.)

I know that I have seen the software step through updating each file previously (I believe with the previous software version). Now, removal of the attributes is the result for the attempts I have made to add the Content-Disposition attribute to multiple files. It works fine when operating on the files individually.