Error processing lectures/prob_dist.md: Error: structural parity check failed for lectures/prob_dist.md: - directive count differs: source has 55, output has 44 — a wholesale mismatch usually means the document was re-fenced or truncated - directive #6 name changed: source line 242 has {note}, output line 255 has {code-cell} - directive #12 name changed: source line 309 has {code-cell}, output line 303 has {exercise} - directive #13 name changed: source line 322 has {exercise}, output line 309 has {solution-start} - directive #15 name changed: source line 360 has {code-cell}, output line 329 has {solution-end} - directive #23 name changed: source line 436 has {exercise}, output line 492 has {code-cell} - directive #24 name changed: source line 442 has {solution-start}, output line 502 has {code-cell} - directive #26 name changed: source line 462 has {solution-end}, output line 529 has {code-cell}