beam_PostCommit_XVR_GoUsingJava_Dataflow fails on some test transforms

Example failure: https://ci-beam.apache.org/job/beam_PostCommit_XVR_GoUsingJava_Dataflow/7/

I couldn't find accurate details about why the tests are failing, but TestXLang_Prefix, TestXLang_Multi, and TestXLang_Partition are failing while running for some reason. Investigating the Dataflow logs, we can see SDK harnesses are failing to connect for some reason. For example:

"getPodContainerStatuses for pod "df-go-testxlang-multi-03300551-62xv-harness-3msv_default(a7f1d8dfb2c3d2b4e80f5d92c1728787)" failed: rpc error: code = Unknown desc = Error: No such container: bea0d9bde42bf890f6fe1d4f589932471037a5948fb9588d01a06425cd14c177"

However I haven't been able to find any further details showing why the harness fails, and the tests keep running beyond that for a while with other errors that are also pretty inscrutable.