In Options > Corrections > Edit Substitutions, some text in the “With” column is unclear (1/5 for example) or wrong (1st is 1r)
Some of the substitutions, such as the fractions, don’t work in the text (i.e. if you type 1/4 in the text, it stays that way).
Own substitutions: the substitution should activate with the press of the space or enter keys, not in the middle of a word
Beta version 2.9.0.7
Windows 7 x64