I just noticed in Qually it doesnt work, isnt qualy the only real hotlap mode so it should surely work there. Maybe only registers times in single player hotlap mode but I dont see any reason it cant do it from any session as long as penalties are on or its doing its own lap invalidation checks. Would be good if it gave a best lap for each session for friends so you can see their times in pracitce/hotlap/qualy/race to see how they go in each session not just in a solo hotlap which really doesnt say that much.
Also not sure if you need to run the app for times to register but again it should just save times without needing the app running in any session, as is its quite pointless atm.