Hi, there, we have a couple of customers report tips on authorization bill can't be set correctly (through network pay display with our ios based POS semi integration) . We checked on the development unit a moment ago. Looks like the AdjustTips function return succeed but the actual tips were not set at all. The temp solution right now is to go through each payment and set tips manually (use Transactions app), which can work though it will make report on POS not synced. Would you please investigate this and see what's going on. Since this problem suddenly show up yesterday, would this be related to new 4.0 ios sdk release?