FastRawViewer relies on operating system services for that: if OS signals that 'current folder contents has changed', the new subfolder will be added to Folders panel. Timed rescan may be too resource consuming on large folders esp. on slow media (e.g. network folders or removable media folders).
If Operating System does not provide a signal mentioned above: you need to use manual rescan (Folder panel - gear menu - refresh folders tree).
FastRawViewer relies on
FastRawViewer relies on operating system services for that: if OS signals that 'current folder contents has changed', the new subfolder will be added to Folders panel. Timed rescan may be too resource consuming on large folders esp. on slow media (e.g. network folders or removable media folders).
If Operating System does not provide a signal mentioned above: you need to use manual rescan (Folder panel - gear menu - refresh folders tree).
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Alex Tutubalin/FastRawViewer team