Yeah I get this a fair bit since the update too. It is irregular but as I farm Powerslave a lot it happens a lot there. As you say, wait it out and it eventually gets there but it can take a minute or more to sort itself out. Also getting more SACRO and PVTE errors since the updates - the ones where it says the app needs to restart from your home screen. Maybe getting four or five a day but I do auto farm most of the day so logged on a lot.