OTA update - Verification Failed

Summary

When trying to install the 0.5-201905018808 update for albus, the download appears to succeed, but then it gives a "Update Verification Failed" error.

Steps to reproduce

Go into Settings->System->About Phone->System Updates and click Download on the 0.5-201905018808 update. Wait for the update file (882MB) to download, then the "Update Verification Failed" message appears. The only option is to download again, which produces the same result.

What is the current behavior?

Update fails with a "Update Verification Failed" message.

What is the expected correct behavior?

Update succeeds.

Relevant logs and/or screenshots

05-03 17:04:56.544 16083 27806 E UpdaterController: Verification failed 05-03 17:04:56.544 16083 27806 E UpdaterController: java.security.SignatureException: signature doesn't match any trusted key 05-03 17:04:56.544 16083 27806 E UpdaterController: at android.os.RecoverySystem.verifyPackage(RecoverySystem.java:278) 05-03 17:04:56.544 16083 27806 E UpdaterController: at org.lineageos.updater.controller.UpdaterController.verifyPackage(UpdaterController.java:262) 05-03 17:04:56.544 16083 27806 E UpdaterController: at org.lineageos.updater.controller.UpdaterController.lambda$-org_lineageos_updater_controller_UpdaterController_8983(UpdaterController.java:244) 05-03 17:04:56.544 16083 27806 E UpdaterController: at org.lineageos.updater.controller.-LambdasfpY0v4CqXlVwV9NVtQ1QBJU2ss.$m$2(Unknown Source:8) 05-03 17:04:56.544 16083 27806 E UpdaterController: at org.lineageos.updater.controller.-LambdasfpY0v4CqXlVwV9NVtQ1QBJU2ss.run(Unknown Source:19) 05-03 17:04:56.544 16083 27806 E UpdaterController: at java.lang.Thread.run(Thread.java:764)

Possible fixes

Signing of the Albus builds maybe isn't done with a correct signing key?