My colleague Mihail has already answered your support ticket on the subject - for convenience I am pasting his answer here as well:
The experienced behavior indeed is caused because of the browser caching. I would suggest you to add a random query string to the files URL's whenever a folder is reloaded. For this purpose you will need to create an instance of the FileExplorer's built-in FileSystemContentProvider and override its ResolveDirectory() method in a similar way:
For your convenience I am attaching a sample project demonstrating the approach. Please, give it a try and let me know if I could be of any further assistance.
var orgDir =
var random =
file.Url = file.Path +
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