Getting error from qtlicd "Could not send usage statistics of reservation ID" after releasing the reservation

I see this log after launching qtcreator:

" [WARNING] [licenser]: Could not send usage statistics of reservation ID: 37eb2100-7fa7-40df-9fe5-432a1025b004: Unknown error."

after I release the reservation. It seems that Qt Creator didn't get new reservation but used the cached one, but the deamon tried to send the usage statistic for the one that has been released. It seems to be like an issue as the usaged statistics might be distorted.