ValueError When Aligning Slices

[DruncBread]

Hi,

I encountered ValueError when using code below

ap = AlignmentProblem(adata=adata_concat)
ap = ap.prepare(batch_key="batch", policy="star",reference=sample_ids[ref_idx])
ap = ap.solve()
ap.align(mode="warp", spatial_key="spatial", key_added="spatial_warp_sequential")

ap.align() function raised the error

Would you mind helping me solve this problem? Thank you!

Best regards.

[MUCDK]

@ArinaDanilina you've looked into that, haven't you?