Core issue
This problem occurs due to the presence of Cisco bug ID CSCse12882.
Resolution
In order to resolve this issue, complete these steps:
- Temporarily remove all the access-group commands except for the first one.
- Load the PDM. When the PDM loads, it creates pdm group commands in the configuration.
- Add the temporarily deleted access-group commands back into the rest of the access-group commands and load the PDM. It creates more pdm group commands and loads fine this time.