The ID computer 1388 is corrupted.
Most of the work units, it processed are "invalid (6748)"or "waiting for validation(4103)".
The specific trouble is that most of its work units lasted only few seconds.
It's not normal.
Better would be to suspend this computer or to bannish it temporarily , untill the owner modify its settings.

Just to inform : there is a boinc documentation to blacklist a host :

Blacklisting hosts

To blacklist a host, set its max_results_day field to -1. This will cause all of its scheduler requests to return an error message and do nothing else (no jobs or trickle messages will be sent or received).

yes the machine seems to have a problem, I investigate before and I balcklist if necessary.

This host is having a bad time: https://quchempedia.univ-angers.fr/athome/results.php?hostid=4443

State: All (46091) · In progress (8) · Validation pending (4502) · Validation inconclusive (0) · Valid (0) · Invalid (41581) · Error (0)

There is a lot of such hosts that spam the server with instant Invalid processing of workunit.
So they make plenty of Tasks wait for a long additional validation.

Let's report about any of such hosts into this thread to make them banned.
Here they are:
4443
3733
4505

I ban the 3 hosts. Thank you a lot !

Done, Thank you !

1912
This computer had workunits successfully done several days ago.
But now it is spamming errors.

Thank you ! Done

done ;)

OK, Thank you :)

nice one again ! thank you

thank you :)