The webview panel shows a blank screen（crash） after certain operations

[lkpAndld]

Describe the bug
The webview panel shows a white screen（crash） after certain operations.

To Reproduce
Two ways to reproduce this issue.

1. After the editor has been idle in the background for a period of time, operating on the panel
2. Variable number of drags - from a few to hundreds of times

Expected behavior
The HTML should run normally instead of crashing.

Screenshots

Version and environment:

• OS: macOS 15.5 (24F74)
• JetBrains Runtime version: 21.0.7+6-b1038.58 aarch64
• CPU: ARM-64（Apple Silicon）
• JCEF Version: 122.1.9
• CEF Version:
• Is OSR enabled: NO
• IDE: IntelliJ IDEA Ultimate 2025.2

Detailed information about JCEF-helper-renderer crash：

jcef Helper (Renderer)-2025-10-23-105300.txt

Summary information of JCEF-helper-renderer crash：

Crash Type

• Exception Type: EXC_BAD_ACCESS
• Signal: SIGSEGV (Segmentation Fault)
• Subtype: KERN_INVALID_ADDRESS at 0xc06f7d1e14010038 -> 0x00007d1e14010038 (possible pointer authentication failure)

Crashed Thread

• Thread ID: 61893985
• Thread Name: CrRendererMain (Main Renderer Thread)
• Queue: com.apple.main-thread