Hello Evgeniy,
I am really sorry for the delay of this reply as it is a weekend for us here.
That's strange, Because I have tried to reproduce on this issues in my local using the Joomla default breadcrumbs, but it's work fine. (I viewing the subcategories)
Please have a check my attachment screenshot
If I'm testing wrong way, can you provide us with your Joomla backend and FTP access so we can help you check on this quickly? Please advise.