1 Cor. 1:14 contains unexpected output that does not match source verse

1 Cor 1:14 includes very unexpected output in the bep-to-Indonesian back translation, despite the team being generally happy with the output (GEN, RUT, 1-2CO) otherwise. Model scores look good: BLEU 52.83, chrf3++ 68.55.

Of note is that the training set in almost entirely OT, with the exception of Eph 1-4.

bep (source) extract:

Rasiꞌnanto i oloꞌmi tiꞌarakou ara to kuriu, bateꞌraꞌ peá Kirisipu hai Gaiu,

In English (NIV),

I thank God that I did not baptize any of you except Crispus and Gaius,

Indonesian (target) inference:

Kepada pemimpin penyanyi. Dinyanyikan menurut lagu "Bunga Bakung." Lagu yang dikarang Daudiꞌ.
Translated Ind-Eng by Google Translate:

To the leader of the singers. Sung to the tune of "Daffodils." Song composed by Daudiꞌ.

The config for this model and the inference are in S:\MT\experiments\Indonesia\Behoa\NLLB.1.3B.bep-ABe.id-TBBe.

Start with the model configuration and inference referenced at S:\MT\experiments\Indonesia\Behoa\NLLB.1.3B.bep-ABe.id-TBBe, then compare the source verse, target inference, and training-set coverage described in the issue. Reproduce the unexpected 1 Cor. 1:14 output and document the cause or a confirmed reproduction path.