Stefano Franchi schrieb:
3. I opened the .lyx file in an editor and the preamble says:LyX file created by tex2lyx 1.6.2 \lyxformat 247
So tex2lyx run successfully, but lyx2lyx failed to convert it further from format 247 to 345. Can you provide a small TeX file to be able to reproduce the problem?
regards Uwe