Tag filter defaults to OR -- need to have AND

Tag filter defaults to OR -- need to have AND

Hi,

I teach multiple courses online and have notes that are tagged by course and week.  Notes often apply to multiple classes and multiple weeks, so a note may have several tags.  For example:

Note1 -- tags: classA, classC, week1, week3

Note2 -- tags: classB, week1, week 2

Note3 -- tags: classB, classD, week2, week4

(repeat for about 5,000 notes)

So if I am in week 1 of class A, I would expect that if I include the tags: week1 classA into the search filter, I would only get notes with both tags -- in this case, it would be Note1. (default behavior in Evernote)

Instead, using multiple tags acts as an "OR" -- so filtering on tags: week1 classA results in seeing notes with either of the tags -- this gives me Note1 and Note2. 

In Evernote, filtering on my current class and week gives me the desired notes -- about 40.  But in Nimbus, filtering on my current class and week gives me all the notes for the class, along with all the notes (for all my classes) for the week -- about 900 notes. This behavior is useless. 

Additionally, the tags search function (e.g., typing tags: week2 into the search window appears to be broken. It results in "No results found: Try clearing active filters" even though I'm in "All notes" "All folders" and "All tags"

I really want to like Nimbus as I'm quite unhappy with Evernote's latest changes, but this tag search behavior along with not properly importing the notes (see my other post) is a deal-breaker.