Intermittent, unpredictable inability to add or apply edits to metadata fields such as IPTC Core using Adobe Bridge 12.0.2 and preceding 12.0.1.246 release. This is particularly unacceptable when editing metadata of multiple selected images. Worse yet, there is no error message generated! You must check file by file, metadata field by field, to see if the edit was applied. This seems to persist in certain image files but not others.

When only one file has metadata added or edited metadata, clicking the lower right corner “Apply” icon results in either:
1. the added or edited metadata disappear from the field after a few seconds and the metadata is not changed, or
2. the added or edited metadata remains visible and the metadata is actually changed.

Reverting back to Bridge 11.1.3.200 seems to eliminate the problem. Added or edited metadata are applied to the XMP sidecar file(s).

Is this a bug in how Bridge caches writes to the XMP files?

Windows File Explorer file shows all the XMP file attributes are either N or A. None of the XMP files are Read Only. All the XMP files seem readable and intact in Notepad. All the image files tried are Sony ARW files, both compressed and uncompressed.

Windows information for the machine: Windows 10 Pro version 21H2 OS Build 19044.1766 with Windows Feature Experience Pack 120.2212.4180.0