bcc H 2x2x2 backflow batched test failing

[ye-luo]

mentioned by #5400

https://cdash.qmcpack.org/queryTests.php?project=QMCPACK&date=2025-04-24&filtercount=1&showfilters=1&field1=testname&compare1=63&value1=short-bccH_2x2x2_ae-vmcbatch_bf-1-16

[prckent]

I have a report of the deterministic backflow tests failing on MI250X. Am getting details since the problem is presumably the same:

    665 - deterministic-bccH_2x2x2_ae_bf-opt-1-1 (Failed)
    666 - deterministic-bccH_2x2x2_ae_bf-opt-1-1-check (Failed)
    673 - deterministic-bccH_2x2x2_ae-vmc_bf-1-1 (Failed)
    674 - deterministic-bccH_2x2x2_ae-vmc_bf-1-1-kinetic (Failed)
    675 - deterministic-bccH_2x2x2_ae-vmc_bf-1-1-totenergy (Failed)
    676 - deterministic-bccH_2x2x2_ae-vmc_bf-1-1-eeenergy (Failed)
    677 - deterministic-bccH_2x2x2_ae-vmc_bf-1-1-samples (Failed)
    678 - deterministic-bccH_2x2x2_ae-vmc_bf-1-1-potential (Failed)
    679 - deterministic-bccH_2x2x2_ae-vmc_bf-1-1-ionion (Failed)