I am having a similar problem with Cura 4.13.1. When I print either Tree supports or Custom supports (Under the cylindrical plugin), The Hotend hits the supports and knocks them over. The Print survives and never gets hit. I do not have "Z Hop only over printed parts" checked. Avoid printed parts, and avoid supports when traveling are both checked. And I upped the Z-Hop height to 0.24mm to no avail. I am printing at 0.12mm. The supports hold to at least 3.5 inches (guestimate) and then start to get hit, until they fall over. My print is 5-3/4" tall. **Note: I have not tried "normal" supports as of today.