Intentional. I transcribed the music first onto HookPad/TheoryTab then used that as a basis. Here's where I dumped all of my transcription on to.
You can see under Chorus, for some reason, when I asked someone to take a look and see if it was passable or not, he decided to invert the chords even though the second half is almost exactly the same. When I listened through the piece, it sounded alright so I kept it.
The fff there is because, for some reason, MuseScore decides that it's a good idea to play twice as soft than on the web browser, so I had to turn it up to fff and ff so that I can actually hear stuff.
Either way, I'll modify it a bit to make it more reasonable.
EDIT: New version updated.
The problem wasn't that you used an inversion of the chord, the problem was that you used the inversion of a different chord. So the first part is fixed now, but you still kept the problem in mm 70-77. To make my point clearer, mm 70 and mm 66 right above it should have the same harmony. The one in mm 66 is a D major in root position, the one in mm 70 is a B minor in second inversion. See? Different harmonies. What you want to use is a D major chord, which would require not F#
B D but F#
A D. Same with the rest of them. Except for mm 74 where you actually do have the harmonies correct, those are D and E majors chords, both in first inversion. And then you go back to a D major chord in mm 75, this one in second inversion, when what you may want is the tonic f# minor chord. Unless what you're doing is prolonging a resolution to the tonic f#,
if that is what you're doing,
with intention, then it doesn't not work. But it's followed by a random G# minor 7th chord (or G# half diminished which at the very least shares a common tone) so that altogether (mm74-77), it's:
DM -> EM -> DM -> G#m7 -> DM -> E#dim -> F#m
VI -> VII -> VI -> iim7 -> VI -> ♮viio -> i
the last three are fine, even if the bass line is a little unconvincing (F#->E#->C# ??). Though it's somewhat passable since it does lead into the next D chord smoothly (
C# F# A ->
D F# A) at least and isn't the final section of the song and thus doesn't have to sound convincing.