Hi,
If you have "Tags" set as homepage (or you open fi. https://discuss.flarum.org/tags directly in a new tab) and then click on any main category, the tags menu on the left side will be all expanded and shuffled.
https://imgur.com/6L6Awa6
When you click on any sub-category it seems more normal but then there's still an issue of not all other sub-tags within the same main tag showing up.
This only seems to be from the first time you open the tags page in a new tab, after refreshing the problem seems to go away.