Sorry if this is “beating the drum” too relentlessly. Perhaps this was previously explained and I didn’t follow the logic or it wasn’t on point to this issue. So keyboarding an heic file in Photo Supreme and xnViwMP are mutually read as entered. Nitro does NOT see it (nor does macOS Preview). The keywords are embedded so not an issue with sidecar files. It seems to me that there must be different fields within the HEIC file structure that are subject to different standards or the xmp internal data follows different formats.
Would an uploaded file be of any use in resolving this?
thanks
gary