File download problem via classic web client

Hello,

Some of our users use the M-Files via classic web client.

Our problem is if they double click to a single-file document, that object doesn't download automatically.
They get the usual desktop message (Object is read-only at the moment. Do you want to check it out to modify?)

After they check it out, modify, save and close, don't find this file anywhere. There isn't in the Download folder.

If I sign in via web client, it works well for me. The file downloads with double click automatically, so I think maybe it will be web browser configuration, but if it's true, what should I set up?

I am without idea.

Both of us use Google Chrome with M-Files Chrome extension.

Could you help me, please?

Thank you in advance.