I have been using this exporter Photoshop_Plugins_x64_8.55.0109.1800 with PSD for sometime now, creating 3D video game assets. My copy of PSD is a legacy version, however, it does exactly what I require. The problem arises when an Alpha channel is added to the PSD image. Remove Alpha and exporter works. Interestingly I can edit previous files that successfully saved with an Alpha channel using this module from many months ago, and the exporter will save with Alpha channels. A new image won’t save. I used to get this error in the past if the selection tool was active on an image. I simply unselected the tool and the exporter worked fine. Unfortunately this is severely impacting my income stream.