When did this start happening for you, hon?
Usually stuff like this happens if you've installed things to your game such as big custom maps and a big download of custom markings.
If you have installed something to the game recently then I really must suggest un installing those contents.
However, I did see that you said you tried uninstalling FeralHeart then re-installing it. If so, try again but this time do the following:
1. Uninstall FeralHeart from Control Panel \\ Uninstall a program
2. Go into Local Disk (C:) (or wherever you have saved your FeralHeart folder) and completely remove your FeralHeart folder.
3. Reinstall FeralHeartThe reason I ask that you delete your FeralHeart folder AFTER uninstalling is so that all FeralHeart contents are completely removed from your computer. If you didn't, your computer will just replace everything but keep whatever is causing the issue. That is why you must delete your folder before re-installing to have a fresh start.