Board Thread:Support Requests - Getting Technical/@comment-301511-20190414133656/@comment-9605025-20190414233953

That is just they way the markup deals with images; for whatever reason. If you really want to have it at 300px, set width to 300px instead of auto. However, this will force the image to the very edge of the infobox. Why this isn't the case for the classic infobox, despite that one supposedly also being 300px in width, it not clear without further investigation.