I have added the max 200 words to the September. section of Miscellaneous. When I now try to add one more i thought i should get a new section but instead i get an message that the section is full "There are more words than can be added to this section. Would you like to add as many words as possible to this section and put the others in another section? Click the button again to confirm.". I do so and then gets this Note: this list has already had 引起 quick added to it.

It is not in the list. After this i do get a prompt for creating a new section and now I can add the character. This happens for every word i try to add. they are all marked with green plus signs so they are not in the list before.

Thanks for the report. I fixed the bug and will upload it soon. Looks like you got it working though by manually adding a new section to the end.