Issue description
Archicad schedules can take a very long time to rebuild or open if their criteria contain many “OR” filters that are not grouped with parentheses, which can cause extremely slow schedule performance in large projects.
Solution
Long loading times when displaying a schedule are often related to how the criteria are managed in its Scheme Settings.
From the Navigator or the Organizer, right‑click the name of the schedule and open the Scheme Settings.
In the list of criteria, locate identical criteria types that are linked with "OR" before the next criterion.
- Identical criteria linked by an "OR" condition must be grouped inside parentheses.
Parentheses clearly limit the search to the selected criteria. Without them, the "OR" condition forces the software to check all elements in the project, which can take a very long time in large models. - Confirm the changes with OK, then open the schedule.