Quick scrolling of the modpack list at adding instance screen crashes the app on windows 10

[ksoczowka]

Operating System

Windows

Version of Prism Launcher

Prism Launcher 6.3

Version of Qt

Qt 6.4.2

Description of bug

When in new instance screen and want to get a new modpack. When you scroll quickly the app crashes!

Steps to reproduce

• Go to Adding new instance menu
• Select Modrinth/CurseForge
• Scroll down with mouse quickly
• Crash

Suspected cause

It only occurs when the images doesn't load yet so I think it could be that app is trying to access the value of a page that doesn't exist so app is throwing an range error.
On the other hand I don't know, because there is no error message after the crash.

This issue is unique

• I have searched the issue tracker and did not find an issue describing my bug.

[TayouVR]

can reproduce, issue seems to be caused by our ConcurrentTask

https://github.com/PrismLauncher/PrismLauncher/blob/develop/launcher/tasks/ConcurrentTask.cpp#L118

[ksoczowka]

May I try to fix this bug? I want to contribute to this project

[TayouVR]

go ahead!
I am currently occupied with other tasks and my personal life, any contribution is welcome!

[Trial97]

Can you try the nightly build(https://nightly.link/PrismLauncher/PrismLauncher/actions/runs/5394098599) and see if this is still reproducing?