Cannot start process from orchestrator - error code 0x8007054F

We run a scheduled process from orchestrator via unattended robot each hour from 8 to 22.
Each day a few runs end up in the state Faulted and log nothing.
What could be the cause of the problem?

The error we get in the job run information is this:

Не удалось запустить исполнитель. An internal error occured. (Exception from HRESULT: 0x8007054F).

The first sentence is in Russian and can be translated to “Could not start executor”.

On the first day it happened 4 times - between 12:00 and 15:00.
On the second day - 5 times, between 13-16:00 and at 18:00.
On the third day, i.e. today, it happened 2 times - at 15:00 and at 15:16 during manual run.


The administrator told us that there was another process that was assigned to the same robot at the same time. They moved it to another robot, and it seems to have fixed the issue.

But I still do not know the exact cause of the problem.

Welcome to the Forum!

As I understand this bug is over 2 months old. Everything is written here: Robot Licensing Failed. There are no available licenses on the server. (#1914).