Hi @baronfrosti, I don’t know if this may explain your issue but, if there is a post checked, it will persist on the list even if you change the filters. This way you can do a first filter, check the posts, do another filter and so on.
Regarding the dates, the plugin uses the “post_date” column, so it may be different from the one you are expecting (maybe modified date?).
Let me know if this explains your issue.