---
title: KeyShot Crashes When Using Shift+Click to Marquee-Select Surfaces After Splitting Object Surfaces
description: Learn how to fix KeyShot crashes caused by Shift+Click marquee surface selection after splitting object surfaces in version 2025.2, and why updating to 2025.3 resolves the issue.
---

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# KeyShot Crashes When Using Shift+Click to Marquee-Select Surfaces After Splitting Object Surfaces

## Unexpected application crash when marquee-selecting surfaces using Shift + Click after applying Split Object Surfaces.

#### **Issue Description**

Some users may experience KeyShot unexpectedly closing with no error message when attempting to marquee-select multiple surfaces after using the **Split Object Surfaces** feature. The crash occurs immediately upon releasing the mouse button after dragging a selection box with **Shift + Click**.

The issue may also occur in the main render viewer when using **Shift + Click + drag** to marquee-select multiple parts.

#### **Environment**

- KeyShot 2025.2
- Windows OS
- GPU or CPU mode (issue occurs regardless of rendering mode)

#### **Cause**

The exact trigger is inconsistent, but the issue is related to an instability in KeyShot 2025.2 that occurs when performing marquee surface selection after splitting object surfaces. Selecting surfaces **one at a time** does **not** cause the crash, only marquee-style selection does.

This behavior was resolved by fully reinstalling KeyShot and updating to **KeyShot 2025.3**, which includes stability improvements that prevent the crash.

#### **Resolution**

### Recommended Fix: Update to KeyShot 2025.3

Updating to the latest KeyShot version fully resolves the issue. Users who updated to **KeyShot 2025.3** reported that the crash no longer occurs.

**Additional Notes:**

If you continue to experience issues after updating, please contact KeyShot Support with your logs, system details, and reproduction steps.

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