Welcome to the Community,
it looks like that for whatever reason "bddc12-000002.vmdk" is the base disk rather than a snapshot. According to the vmware.log file it's associated data disk is "bddc12-000002-flat.vmdk" (i.e. "flat" rather than "delta" in the name"). Please take a look at the "bddc12-000002.vmdk" descriptor file (e.g. from the command line) to see whether it contains the geometry information, no "parentfilenamehint" entry, and "parentCID = ffffffff". If the file looks like I expect, it can be renamed using the vmkfstools command line utility to avoid further confusion.
Btw, has the VM been cloned/replicated previously while it was running on an active snapshot?
André