Topic List Previews (TLP)

Customization Theme component
641

https://github.com/merefield/discourse-tc-topic-list-previews/commit/5d605ff74a5ee35685ffdf80d6a30a1a2842fd11

Try that for size (I think it may be related to the size calculation when off-screen - a workaround existed but was restricted to Firefox)

Please update and let me know if it resolves your issue.