Sure,,, I'll try to elaborate,,,
Phase is most an issue with multi-mic instruments,,, like drums,,, recording at the same time,,,
Parallel bus can cause phase as well,,,
My first thought hearing the drums, was maybe they didn't have the body / punch because of phase. Timing / Alignment,,,
I'm sure you've heard of it, especially drums, they can sound weaker when all tracks play at the same time, vs solo.
So if your kick or snare sounded great or ok, then pop in the OH / Room mic, the kick or snare sounds less full and lacking punch, then check phase...
For guitars, vocals, even bass, if they sound tonally different in Mono, then check the phase.
Say in an old recording / album, they put the drums on the right and the bass on the left to allow separation in stereo,,, If the bass dropped out of the mix, or sounded less punchy / thin / mid freq, when both played, then phase relationship / freq were addressed,,, in the mix.
To check phase try and zoom in close to the wav files,,, I mean in real close... Cursor at the beginning of one and see the start of another.
If you line them closer to the mark, do they sound better ? then problem was phase of one mic to another...
It's a little hard to tell in the mix, because there is little width, mostly everything is center balanced,,, not really consistent, defined bottom end either...
And there is the levels, maybe you increased to to be heard, where instead EQ could have been used instead of volume,,,
I only mention because at times, things sound fuller, then get a little thin, a bit harsh,,,
Might be all the phaser / flanger stuff... Could be just the mix... Hard to tell without the tracks in front of me, lol,,,
Here's a search term that brought up plenty of examples,,, written and video,,, " example of phase issues "
Like I mentioned before, might get some real helpful feedback and different mixes posting the stems in the "Mix This" thread,,
That way more would have the stems and in the DAW to try and solve issues while creating a mix,,,
Might even get a killer mix you really like while getting tons of feedback in a more direct way
And hey, I don't know every thing either, lol, always learning ...