Client crashes after ~1 minute after displaying .apng link preview

[norawibb]

Describe the bug
I posted a link to a site that serves a 250MB .apng file in a room inside a space. This space is hosted on my Continuwuity instance. All members using the commet client have found that when they leave the channel open, after about a minute, the entire app quietly crashes. This happens on both android and desktop commet clients (Windows and Linux).

To Reproduce
Steps to reproduce the behavior:

1. Paste https://media.jinora.org/the-sun.apng in a room with URL previews enabled.
2. Leave the channel open for a minute or so.
3. Crash

Expected behavior
The URL preview does seem to display properly as it does on other clients. Commet just crashes for some reason after a certain amount of time, which doesn't happen in clients like fluffychat or cinny.

Screenshots
This is the link that causes it for us.

Additional context
Server: Continuwuity v0.5.7

We verified this happens in other rooms with the same link, and on anyone's device running Commet. When I run Commet from a terminal it points to this issue being a segfault with no warnings or errors beforehand:
[1] 713833 segmentation fault (core dumped) commet

Device Information

Device
Platform: linux
Version: v0.4.1
Git Hash: c2ee370d18c822673b24b6579842a01b971b1584
Detail: debian
Build Timestamp: 1772620801855 (March 4, 2026)

System Info
Name: Arch Linux

Display Server: wayland
Desktop Environment: wayland