Uipath orchestrator job

uipath orchestratorでジョブを複数実行しても、保留にならず失敗します。
uipath robot から uipath assistantにアップデートされてからです。
なにか設定が変わったのでしょうか?
ライセンスはuipath community editionです。

2つめのジョブを投入すると、下記エラーになります。
image
通常は、保留中となり、1つめのジョブが終わった後に、
2つめのジョブが実行されると思うのですが。。。
ジョブは特定のロボットで開始しています。
動的に割り当ても試してみましたが、1つめのジョブが終わったあとも、2つ目以降のジョブが永遠に保留中になり、実行されない状況です。
非常に困っています。なにか方法はありますか?

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