Not anything in particular I can think of, there is a lot of stuff going on, but not anything with a delay of multiple seconds. One thought was a physics issue - e.g. a rock rolls into something, but it happens on other levels without physics objects. Apex destructible windows could be as well, but they don’t get destroyed during the lag spikes. There is a lot of initialization, but that seems to happen within the first fraction of a second. Will have to try experimenting with console commands and the dev build.