Hi John,

Thanks for asking.

Piers McMurdock asked a very similar question back in May this year https://totara.community/mod/forum/discuss.php?d=16404

The short answer the behaviour your are observing is both correct and intentional. It has been done that way for security.
Have a read of the above thread and if you've any questions still please ask them here, I'll be happy to answer them.

Kind regards

Sam