some of the SMART fallback errors are getting triggered
example when rendering https://intertube.eta.st/train/NBX8lkZLT1qCzcU2otea1A:
Jun 07 19:21:51 intertube intertube-web[1525756]: <WARN> [19:21:51] trackernet xrsmart.lisp (smart-operations-for-step) -
Jun 07 19:21:51 intertube intertube-web[1525756]: used SMART fallback entry (FA49 0059 B) for (FB49 FA49 FC49
Jun 07 19:21:51 intertube intertube-web[1525756]: R049) -> 0059 (area Q4)
Jun 07 19:21:52 intertube intertube-web[1525756]: <WARN> [19:21:52] trackernet xrsmart.lisp (smart-operations-for-step) -
Jun 07 19:21:52 intertube intertube-web[1525756]: used SMART fallback entry (0224 0214 B) for (XXCB 0224 0232
Jun 07 19:21:52 intertube intertube-web[1525756]: 0238) -> 0214 (area DA)
Jun 07 19:21:52 intertube intertube-web[1525756]: <WARN> [19:21:52] trackernet xrsmart.lisp (smart-operations-for-step) -
Jun 07 19:21:52 intertube intertube-web[1525756]: used SMART fallback entry (0224 0214 B) for (XXCB 0224 0232
Jun 07 19:21:52 intertube intertube-web[1525756]: 0238) -> 0214 (area DA)
Jun 07 19:21:52 intertube intertube-web[1525756]: <WARN> [19:21:52] trackernet xrsmart.lisp (smart-operations-for-step) -
Jun 07 19:21:52 intertube intertube-web[1525756]: used SMART fallback entry (0233 0239 B) for (XXCB 0233 0225) -> 0239 (area D4)