Number of retained messages inconsistent

[overlinden]

Hi community,

I found a strange behavior of the broker.

The number of retained messages reported via
$SYS/broker/retained messages/count
does not match the number of messages returned by
mosquitto_sub -t "#" -v --retained-only

In my example the $sys topic reports 101 retained messages but the mosquitto_sub command returns 50 only.

Can you explain why?
Which number is correct?

Best regards
Oliver