I found the problem relates with keeping state of tabs.
For example if some extend hard drives suddenly switch off because of a power outage, all tabs throwdown their state and start showing "This PC" by default. Ok. It's quite logically. But when we return to previous state (when all extend hard drives again work), we don't see any changes - tabs are continuing to keep demonstrating "This PC" directory content. That's awkward and wrong behaviour. The proper behaviour in such situation - automatically return to a last valid fixed state. That is, if the program registers that discs reconnected, it just does a back step (transition to previous 'page').
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If folders or disks are removed, tabs showing them will go up a level until they're in a folder that exists, by design. This is something people asked for. 
You could use a script that checks the history of all tabs showing "This PC" and opens folders as needed.