No Thumbs

[Nytewulf]

When files are imported, previews are being generated but not thumbnails (only the icon for the default viewer appear).  It requires a Forced Update in order for the thumbnails to be generated.

Settings:
Working Mode: Default
Use Embedded Preview: No
Minimal Size: 1200

Indexing: Import new and updated automatically

I did change quite a few settings.  Could any of them cause this?

John

[Mario]

I did change quite a few settings.  Could any of them cause this?

Well, this depends on which settings you changed...

As alway, including a log file taken in debug mode (Help > Support) of a session where you produced this problem goes along way in helping us diagnose things. Because when IMatch cannot extract a thumbnail, it will log errors to the log file.

1. Switch to debug logging.
2. Repeat your task
3. If no thumbs are generated, attach the log file to your reply (zipped).

[Richard]

1. Switch to debug logging.

I realize that debug logs are larger but do they cause any real problems? I have had debug logging since the beginning and see no problems. If it doesn't cause any real problems, I would recommend that all users make the change so that they have the correct log to send when the problem occurred.

[Ferdinand]

+1

[Mario]

Debug logs can get really large, especially when a user runs them while ingesting lots of files.
And they slow down IMatch because IMatch has to write a lot of data, and log file access needs to be synchronized across threads, allowing only one thread to write at a time - this may also slow down certain operations. To debug the typical issues, the normal log file is sufficient. But for a problem like "no thumbs" a more detailed log file may reveal things that a normal log file does not. Especially code paths IMatch is using etc.

[Ferdinand]

Debug logs can get really large, especially when a user runs them while ingesting lots of files.

How large is too large?  I've not seen any monstrous ones.  But then I don't ingest monstrous numbers of files at a time.

[Mario]

There is no too large. Log file writing does not get slower when the log file becomes larger, and modern disks are large enough to hold even log files with gigabyte size easily. It's just that debug logging slows down IMatch unnecessarily so there's no need to run it in debug all the time.