Hello Neil,
Can you please provide the following information regrading your system: OS version, CPU model. GPU model, GPU driver version, number of RAM modules, their capacity and frequency, motherboard model.
This error should not appear in common cases, as it means that some depth map cannot be unpacked and read. I would rather say that the problem is related to the RAM issues, so it is recommended to run multi-threaded Memtest86 checks for considerable time period. Also if the CPU or RAM is overclocked, please return them to the original state, it may be also reasonable even to lower the RAM frequency, for example to 2000 MHz and check if it solves the problem.