This issue is still ongoing. Tesco's source reports are continuing to be made available later and at less consistent times than usual, which can leave the most recent day's Tesco data arriving late or temporarily reading a day behind.
To help you plan around it: Tesco data normally finishes updating in SKUtrak by around midday (UK time), with collection typically completing between approximately 09:00 and 11:30. On affected days, a later collection runs into the early afternoon to pick up the delayed report. We'd therefore recommend relying on Tesco data up to the previous day, which is reliably available by around midday.
We're continuing to monitor this closely and adjust the timing of our collection so we pick up the reports as soon as they're released.
We'll update here again as the situation improves.