On Tuesday, July 5, 2016 10:36:51 PM WEST Andrew Parsloe wrote: > The problem is just with compressed files. Uncompressed they export > fine, and can be read in 2.1.5. With the compressed file when I try to > open it in 2.1.5 I get the message: "<name of file>.21.lyx is not a > readable LyX document." Perhaps this is a Windows only problem?
Could you, please, test the following (independent) tests: 1) take the compressed "<name of file>.21.lyx" created with 2.2 use an external program to decompress that file and see if lyx 2.1 opens that file? 2) use lyx 2.1 to create a compressed file, save it, close lyx and try to open it again with lyx 2.1 Regards, -- José Abílio