New Code Fix.
Release : 4.9
Component : CA Test Data Manager - TDM Web Portal
Open a support case and ask for Patch TDMWeb-184.108.40.206.zip patch fixes this issue.
The my reservation screen with all projects checked off will still allow drill down from the GUI to the reservation detail of the current project, but other reservations fail with object not found. The chosen reservations project/version is shown on each line. The functionality should be fixed to take not the current context, but the individual reservation context so the error doesn't occur.