In my styles panel on the right-side, some of the names shrink down to an unreadable size.
Image: http://imgur.com/72PZ2rK
Does anybody know anyway to size them back up? Are the developers aware of this bug?
Please edit the question to include details about the font, point size, special text settings (colour, superscript, spacing, etc.) and other related details of one or more of the tiny styles. It may be a bug, but further details would help narrow this down.
You can disable the Style preview. Go to Tools > Options > LibreOffice > Advanced > Expert Configuration. Search for StylesAndFormatting. You get a line with property Preview. Set its value to false. OK.OK. Restart.