shared-userspace module has so many packages that after printing the task list the build_id gets moved out of the scrollback buffer (1000 lines) immediately. In order to find your module build it would be much better to repeat the build_id after the output.
This is related to but not identical to #525.
Fixed by #532.
Commit 89972fa5 fixes this issue
This issue has been migrated to Fedora Forge: https://forge.fedoraproject.org/koji/mbs/issues/488
Please continue any further discussion there.