I'd strongly recommend to open a support ticket with the STAC team to get this analyzed (best way is via a support request from either the GUI help and support -> open a support case/support request or via the CLI command 'supportrequest'). It might be that due to the power loss the CASE engine encoutered a corruption (especially when it was pulling and applying an update by that time). This issue can only be fixed then by support personnel.
Hope this helps. If not, please let me know.
Thanks and regards,
Martin
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