When I check out documents from Workgroup PDM, sometimes the custom property 'type' field is cleared for all properties. This subsequently blanks out the 'values' and I need to manually enter them back in. The document properties appear okay in the vault, unless I forget to enter them back in (in which case only the PDM defaults of revision, author, project, etc. get populated). My colleagues don't have this issue when working with the same documents, and it seems to happen more often with drawings than parts or assemblies.
Any idea what's going on? It has been happening more frequently in recent weeks, but still doesn't happen all the time. Thanks!