Bot source behaviour

Hi,

What is the behaviour of a bot task that uses tag but that does not specify any bot source?
-Will it take the maximum amount of RPA node available at that time?
-Will it take only one node?
-What will happens if all nodes are occupied when it executes. Will it crash with the following error:

Blockquote
RPA Router/Nub should return node id, but returned: {"“message”":""[urn:uuid:D4EB5FF831FEF2194C159710958923217550] Bot Manager can\u0027t find a free Bot to execute a robotic task.

Yours sincerely,
Alexandre Lasbleis