zeezee85 Does this happen in a new save, with no mods and custom content present? If not, please test one of your main saves, still with no mods or cc; you don't need to save your progress. If your main save is still affected, please move your sims to a different, default or blank lot, and test again.
If the new save is affected, please provide a dxdiag. Click Windows key-R, enter dxdiag in the run box, wait for the scan to finish, click "Save all information," and save the file to your desktop. From there, you can attach it to a reply using the paper clip (Attachment) icon included with the other formatting buttons.