We have recently upgraded Octopus Deploy 2021.1 (from 2017.8) we are using an internal Nexus Repository for our nupkg feed. We have a unique packaging and naming format… its not pure semver
Within the release pipeline “Deploy a Package” step . it only appears to like packages that have more straightforward naming conventions.
but more complex build ids like 2021.4.0.0-11.50.210609.aabbccc will not work… (we need to use this format) and it worked ok in 2018.7
otherwise we get a red message “The package was not found in the feed”