Crashes IDA Pro 9.2 on Windows due to PySide6 6.8.0 bug

[Mirac-ulous]

Title:
Crashes IDA Pro 9.2 on Windows due to PySide6 6.8.0 bug
Description:
Environment

• IDA Pro 9.2 (Windows x64)
• IDAssist 1.5.0
• Python 3.14
• IDA's bundled PySide6: 6.8.0

Problem
IDAssist crashes IDA Pro 9.2 on Windows. The crash occurs both on startup
(auto-open via ready_to_run hook) and when manually opening the panel via Ctrl+Shift+A.

IDA's bundled PySide6 is version 6.8.0, which contains a known critical bug
that causes crashes. See: spyder-ide/qtpy#494

Even importing PySide6 directly in IDA's Python console triggers the crash:

import PySide6

Steps to reproduce

1. Install IDAssist 1.5.0 via hcli on IDA Pro 9.2 Windows
2. Open IDA with any binary
3. IDA crashes automatically after analysis completes, OR crashes when pressing Ctrl+Shift+A

Expected behavior
Plugin loads without crashing IDA.

Workaround
None available. IDA ships a stripped minimal PySide6 (only QtCore, QtGui, QtWidgets)
so replacing it with a fixed version from pip is not feasible as it would conflict
with IDA's own Qt6 DLLs.

The fix needs to come from either Hex-Rays shipping PySide6 6.8.1+ with IDA,
or IDAssist working around the bug.

[symgraph]

As best as I can tell, this one is a bit of an impasse. I've had intermittent success with IDA 9.1 and 9.2 - but it's spotty. Current development is targeting IDA 9.3+.

I'll leave this ticket open and revisit it periodically. Also accepting PR's that solve this cleanly while maintaining forward compatibility :)

[JiwaniZakir]

The crash is triggered the moment IDAssist causes PySide6 6.8.0 to be imported — the known bug in that release is a Windows-specific crash in the Qt platform plugin initialization path, which is why even a bare import PySide6 in IDA's console reproduces it. The likely entry point in IDAssist is whatever module-level from PySide6 import ... statement runs during plugin load (either in ready_to_run or the panel widget initialization), since that import is sufficient to hit the bug regardless of whether any Qt object is actually constructed. A short-term mitigation from IDAssist's side would be to check PySide6.__version__ before importing any submodule and bail out with a logged warning instead of letting the crash propagate — 6.8.0 can be detected with a simple version comparison and the plugin can degrade gracefully until Hex-Rays ships 6.8.1+ with IDA 9.3.