This one I'm pretty sure is an actual bug.
Using this test-str.tbm:
$BitmapX: Sunny01
#End
$Sun: ASun01
$SunGlow: ASun01Glow
$SunRGBI: 1.0 0.92 0.82 1.0
$Flare:
	+FlareCount:	6
	$FlareTexture1: TestSunFlare1
	$FlareTexture2: TestSunFlare2
	$FlareTexture3: TestSunFlare3
	$FlareTexture4: TestSunFlare4
	$FlareTexture5: TestSunFlare5
	$FlareTexture6: TestSunFlare6
	$FlareGlow1:
		+FlareTexture:	1
		+FlarePos:		0.2
		+FlareScale:	1
	$FlareGlow2:
		+FlareTexture:	2
		+FlarePos:		0.3
		+FlareScale:	1
	$FlareGlow3:
		+FlareTexture:	3
		+FlarePos:		0.4
		+FlareScale:	1
	$FlareGlow4:
		+FlareTexture:	4
		+FlarePos:		0.5
		+FlareScale:	1
	$FlareGlow5:
		+FlareTexture:	5
		+FlarePos:		0.6
		+FlareScale:	1
	$FlareGlow6:
		+FlareTexture:	6
		+FlarePos:		0.7
		+FlareScale:	1
#EndIt's my understanding that glow 4, at position 0.5, should appear in the middle of the screen. 5 and 6 should point away from the star, 1 2 3 should be closer to the star. And flare 1 should be visible.
What I get is this: 
https://i.imgur.com/DLlfVVU.pngFlare 5 in the middle, flare 1 not shown at all. Each lens flare seems to be using the properties (position and scale - the same does happen with scale, I found when I was banging my head against this) of the defined flare that precedes it. (Or each one is using the texture that follows it, and flare 6 isn't shown). Either way, blaaargh.
Smol test mod: 
https://mega.nz/file/kEVhTSzS#v65Xp8r_pGkue0UNWpHqqskDGNMW2Pip1Xpq9Yaxyk0[EDIT] Gods bloody damn it. The indices you give to +FlareTexture: are ZERO-INDEXED. Both the table and the wiki are misleading on this (+FlareTexture: 0 refers to the texture defined in $FlareTexture1:) and the MVPs do it wrong. 
 
  
  
  
  
  
 