Today I created and saved two files in Affinity Designer for MacOS v1.6.5. Saved afdesign files on a NAS network drive. Placed afdesign files into a Affinity Published Beta v1.7.0.132 document. A couple of hours later I attempted to open the Affinity Designer files on a different network computer. Files unable to be opened. Error message "Failed to open file. The file version is not supported by this version of Affinity". Also unable to open files on original computer. Both computers on same software version. No software updates have occured.
One of the two files attached.
RMA-20190510-Graphic-Components.afdesign