Angel-212 opened a new issue, #43838:
URL: https://github.com/apache/arrow/issues/43838
### Describe the bug, including details regarding any error messages,
version, and platform.
OS: MacOS Sonoma 14.6.1
Python: 3.10.14
pyarrow: 17.0.0
Snippet to reproduce:
```python
import pyarrow as pa
fields = [('b', pa.null()),('g', pa.string())]
dtype = pa.list_(pa.struct(fields))
arr = pa.array([[{'b': None, 'g': None}, {'b': None, 'g': 'moo'}]],
type=dtype)
carr = pa.chunked_array(arr)
ext_arr = carr.cast(dtype, safe=True)
print(ext_arr) # prints Invalid array but no exception
print(len(ext_arr)) # Len is 1
print(ext_arr[0]) # Raises ArrowIndexError
```
### Component(s)
Python
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