When we perform a search about 50% of the time the system will return 'Item not found' on items that we know exist in the system. The same search done at a later time will return results. This appears to be sporadic and doesn't matter if the document was recently created or has been in the system for a while. We are using the pdm vault with indexing turned on for Solid Works 2014.
We get the following errors on the server running the vault service. It appears to coincide with the times when searches fail but not always
Log Name: Application
Source: Application Error
Date: 12/15/2015 11:44:42 AM
Event ID: 1000
Task Category: (100)
Faulting application cidaemon.exe, version 6.0.6001.18000, time stamp 0x47919426, faulting module ntdll.dll, version 6.0.6002.19514, time stamp 0x561e7b93, exception code 0xc0000420, fault offset 0x000b0a78, process id 0xf38, application start time 0x01d13757e2c51ba1.