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Bug Report: Severe Application Lag/Hang on Model Card Selection Post-Civitai Update #1649

@whitevamp

Description

@whitevamp

What happened?

Bug Description:
Since the latest update introducing dynamically loaded content from Civitai, selecting individual model cards within the Model Browser causes severe application lag. Upon clicking a model card, the UI frequently freezes or becomes entirely unresponsive. The application occasionally recovers after a significant delay, but it frequently remains locked up indefinitely, requiring a forced termination.

Expected Behavior:
Clicking a model card should smoothly transition to the model's detailed view or overlay, loading the Civitai metadata and preview images asynchronously without locking the main UI thread.

Actual Behavior:
The application experiences intense performance degradation or a complete hang upon card selection. The freeze is intermittent in its recovery—sometimes clearing up after several seconds, and other times resulting in an unrecoverable crash/deadlock.

OS: Linux (CachyOS) app-image
Hardware: AMD Ryzen 7 5800X, 96GB RAM, Dual-GPU setup

Steps to reproduce

Open the Model Browser.

Allow the model grid to load initially.

Click on any specific model card to open its detailed view/fetch Civitai data.

Observe immediate and massive application lag/UI freeze.

Relevant logs

Version

V2.15.8

What Operating System are you using?

Linux

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