When I've tested #91142 I saw this in the Kibana log when Fleet tried to upgrade the package.
server log [13:37:20.056] [error][fleet][plugins] Error: error deleting pipeline logs-system.auth-0.9.1
at deletePipeline (/home/dan/dev/elastic/kibana/x-pack/plugins/fleet/server/services/epm/elasticsearch/ingest_pipeline/remove.ts:63:13)
at runMicrotasks (<anonymous>)
at processTicksAndRejections (internal/process/task_queues.js:93:5)
at async Promise.all (index 1)
at deletePreviousPipelines (/home/dan/dev/elastic/kibana/x-pack/plugins/fleet/server/services/epm/elasticsearch/ingest_pipeline/remove.ts:31:5)
at _installPackage (/home/dan/dev/elastic/kibana/x-pack/plugins/fleet/server/services/epm/packages/_install_package.ts:165:7)
at upgradePackage (/home/dan/dev/elastic/kibana/x-pack/plugins/fleet/server/services/epm/packages/install.ts:196:22)
The error message is vague I didn't see any correlation in the ES log, I might have missed it.
When I've tested #91142 I saw this in the Kibana log when Fleet tried to upgrade the package.
The error message is vague I didn't see any correlation in the ES log, I might have missed it.