After editing or saving large PSB files (16bit, compressed) chunks of the image are missing or have color banded artifacts.
Here is an example:
RackMultipart2018021691221a5g8-671dcef1-06a8-4185-8177-45e6a07e5ff5-1099352617.PNG
I got 64GB of RAM and tested it to be sure that it hasn't any defects and causes the issue. I cannot complete my work anymore with this issue. Please fix this!