@ins0mniak @dcc @nyanide @lain @Sovereign @lain @verita84 :thinking_cirno: That's kinda old, maybe try 2.6.1->2.7.1->2.8.0->2.9.0 (there shouldn't be any new migrations in 2.6.2 and 2.6.3 as far as I know). Annoying I know. There were a lot of migrations in 2.7.0 I think and even though ecto _should_ apply them chronologically as they were introduced, something might be broken in the migrations.