Who: Amenia Tir'ein (Level 12 bard with full ranks in speak language and polyglot)
Were/when: Releveling
What: When I have a forced relevel I lose LM as a language, even though I have HM.
Repeatable: This is the second time it has happen, once for each of the last to re-levels
Temp fix: Removing HM as a language and re-adding it
More detail: HM is my 4th language and when releveling I lose all languages after the 4th slot and have to re-add them.