insert sheet from file - 'modify link' feature not working

I have successfully linked a csv file to worksheet.
Update the link via Edit – Links – Update is also working.

Problem – When I try to modify the link from Edit–Links–Modify – specify another file – it shows the name of modified file in place of earlier file.
But upon updating, the worksheet doesn’t get modified. No error message.
Is it a bug or am I missing something.

Thanks,
Vineet

Seems to be a bug, the new link it is not used and not saved with the file. Please can you report the bug? https://wiki.documentfoundation.org/BugReport. And inform here, I will review for set up as new.

I have filed a bug report here
https://www.libreoffice.org/bugzilla/show_bug.cgi?id=69948