ValueError: "mismatch between number of rows in data and number of indices" with (499, 2) shaped streams

[ApolloMacadamia]

Summary

I'm encountering a ValueError when calling esig.stream2sig() on a NumPy array of shape (499, 2).
The error message is:

ValueError: Error occurred in /project/roughpy/src/streams/lie_increment_stream.cpp at line 183 (pybind11::object lie_increment_stream_from_increments(...)): mismatch between number of rows in data and number of indices

However, (498, 2) or (501, 2) works fine.

Steps to Reproduce

import numpy as np
import esig

# shape = (499, 2)
test_stream = np.random.uniform(low=-1.0, high=1.0, size=(499, 2))
depth = 2

sig_test = esig.stream2sig(test_stream, depth)
print(sig_test)


## Environment

- **Operating System**: Google Colab (Linux/Ubuntu-based)
- **Python**: 3.10.12
- **esig**: 1.0.0
- **iisignature**: 0.24
- **numpy**: 2.2.1