Blank warehouse locations have always caused issues especially with Binary zeroes which is why Blank warehouse locations are not recommended. Make a full backup of EVO and or DBA and use UT-K-E to give the blank location a name. Best to do it after hours as it take a while to run. If you have a test company copied from your real company test that utility out there first so you get a feel for what its going to do. Read the instructions for UT-K-E first in the help files before starting.