It is more likely to be this: https://gitlab.gnome.org/GNOME/gimp/-/issues/7747
Before, when I said large, that is in Gimp, There is an example file on above 62 MB file size but 980 MB in Gimp. As that report, Gimp 2.10.30 fails but I do have an old(er) Gimp appimage where the file opens. Usual psd template, lots-of-layers.
The advice from the devs is wait for next release or use 2.99.10 I do not know if a Gimp appimage works in Manjaro but they are still available. https://github.com/aferrero2707/gimp-appimage/releases/
Try the 2.10.22-with-plugins.
Edit: If that does not work (and you say you already tried in a Gimp 2.10.20 ) Since the psd opens in Krita, export that as a openraster image .ora At least that opens in gimp with the layers intact. Shame Krita does not export .xcf format.
Before, when I said large, that is in Gimp, There is an example file on above 62 MB file size but 980 MB in Gimp. As that report, Gimp 2.10.30 fails but I do have an old(er) Gimp appimage where the file opens. Usual psd template, lots-of-layers.
The advice from the devs is wait for next release or use 2.99.10 I do not know if a Gimp appimage works in Manjaro but they are still available. https://github.com/aferrero2707/gimp-appimage/releases/
Try the 2.10.22-with-plugins.
Edit: If that does not work (and you say you already tried in a Gimp 2.10.20 ) Since the psd opens in Krita, export that as a openraster image .ora At least that opens in gimp with the layers intact. Shame Krita does not export .xcf format.