The answer to 'why is my stone walkway drainage problems' is that poor drainage is a common issue with stone walkways. This can be caused by factors like improper installation, compacted soil, or a lack of grading to allow water runoff. Symptoms include standing water, muddy patches, and uneven settling of the stones.
To fix drainage issues, you may need to re-grade the walkway, install a drainage system, or replace the stones and base. Simple DIY solutions like adding gravel or adjusting the slope may work for minor problems. However, for more complex drainage issues, it's best to call in a professional landscaper who can properly assess and address the root cause.