Problem with BigFish Array Indexing

[LR-MVU]

hello,
We have been successfully using bigfish for a year now with no problems until last week. We are getting this error:
IndexError: boolean index did not match indexed array along dimension 0; dimension is 379 but corresponding boolean dimension is 518
However, we have not change anything in the dimension of our images, neither the microscope or the processing of the images.

The error occurs while trying to call the multistack code in postprocess.py
File ~\bigfish\multistack\postprocess.py:194 in match_nuc_cell
i_cell = _get_most_frequent_value(cell_label[nuc_mask])

Could you please advise how to proceed? we have half of a experiment pending for analysis.

Thank you,

Shruti and Maria