Some files have not passed the integrity check. More information----

[Mack_Baise]

I guess many people are having this issue and they will fix it with the next release

Code integrity check failure

The underlying problem here is that the upload limits are changed. There is an issue about that already open https://github.com/nextcloud/server/issues/121 We plan to fix this so you don’t need to adjust the values again after an update. No ETA yet.