The scary_eqns.lyx file we've used in the past for some maths testing results in errors in 1.3.0 after conversion by 1.2.1cvs.
http://www.devel.lyx.org/~rae/scary_eqns.lyx load into lyx-1.2.x, save it (so it's a version 1.3.0cvs can read) now load it into 1.3.0cvs. I get: ... Line ~123: Math parse error: found 'end' unexpectedly Tokens: \begin[{,1][e,11][q,11][u,11][a,11][t,11][i,11][o,11][n,11][},2][ ,10] [t,11][d,11][o,11][t,11]\frac[{,1]\partial[g,11][_,8][{,1][t,11][t,11][},2][},2] [{,1]\partial[t,11][},2][=,12]\left[(,12]\gamma[^,7][{,1][i,11][j,11][},2]\alpha [^,7][{,1][2,12][},2][-,12]\beta[^,7][{,1][i,11][},2]\beta[^,7][{,1][j,11][},2] \right[),12]\left[(,12][-,12]\gamma[_,8][{,1][i,11][j,11][,,12][t,11][},2][+,12] [2,12]\beta[_,8][{,1][i,11][,,12][j,11][},2]\right[),12][+,12][2,12]\beta[^,7][{,1] [i,11][},2][g,11][_,8][{,1][t,11][t,11][,,12][i,11][},2]\label[{,1][g,11][_,8][{,1] [t,11][},2]\end <#>[{,1][e,11][q,11][u,11][a,11][t,11][i,11][o,11][n,11][},2] pos: 102 ... Line ~161: Math parse error: found 'end' unexpectedly Tokens: \begin[{,1][e,11][q,11][n,11][a,11][r,11][r,11][a,11][y,11][},2][ ,10] [h,11][_,8][{,1][+,12][},2][ ,10][&,4][ ,10][=,12][ ,10][&,4][ ,10]\frac[{,1] [1,12][},2][{,1][2,12][},2]\left[(,12]\gamma[_,8][{,1][x,11][x,11][},2][-,12] \gamma[_,8][{,1][y,11][y,11][},2]\right[),12][,,12][l,11][u,11][s,11]\label[{,1] [h,11][_,8][{,1][p,11][},2]\\[ ,10][h,11][_,8][{,1]\times[},2][ ,10][&,4][ ,10] [=,12][ ,10][&,4][ ,10]\gamma[_,8][{,1][x,11][y,11][},2][.,12][r,11][o,11][s,11] [s,11]\label[{,1][h,11][_,8][{,1][c,11][},2][ ,10]\end <#> [{,1][e,11][q,11][n,11] [a,11][r,11][r,11][a,11][y,11][},2] pos: 93 Allan. (ARRae)
