They look alright to me.
1. ꠝꠥ (\xA81D\xA825) (buffer positions 2684 and 2685)
C-u C-x = shows
position: 2684 of 3952 (68%), column: 48
character: ꠝ (displayed as ꠝ) (codepoint 43037, #o124035, #xa81d)
charset: unicode (Unicode (ISO10646))
code point in charset: 0xA81D
script: syloti-nagri
syntax: w which means: word
category: .:Base, L:Strong L2R
to input: type "C-x 8 RET a81d" or "C-x 8 RET SYLOTI NAGRI LETTER MO"
buffer code: #xEA #xA0 #x9D
file code: #xEA #xA0 #x9D (encoded by coding system utf-8-unix)
display: composed to form "ꠝꠥ" (see below)
Composed with the following character(s) "ꠥ" using this font:
ftcrhb:-GOOG-Noto Sans Syloti Nagri-regular-normal-normal-*-40-*-*-*-*-0-iso10646-1
by these glyphs:
[0 1 43037 46 26 -1 27 28 1 nil]
[0 1 43045 54 0 -16 1 1 11 nil]
with these character(s):
ꠥ (#xa825) SYLOTI NAGRI VOWEL SIGN U
Character code properties: customize what to show
name: SYLOTI NAGRI LETTER MO
general-category: Lo (Letter, Other)
decomposition: (43037) ('ꠝ')
2. ꠇꠥ (\xA807\xA825) (buffer positions 2691 and 2692)
C-u C-x = shows
position: 2691 of 3952 (68%), column: 54
character: ꠇ (displayed as ꠇ) (codepoint 43015, #o124007, #xa807)
charset: unicode (Unicode (ISO10646))
code point in charset: 0xA807
script: syloti-nagri
syntax: w which means: word
category: .:Base, L:Strong L2R
to input: type "C-x 8 RET a807" or "C-x 8 RET SYLOTI NAGRI LETTER KO"
buffer code: #xEA #xA0 #x87
file code: #xEA #xA0 #x87 (encoded by coding system utf-8-unix)
display: composed to form "ꠇꠥ" (see below)
Composed with the following character(s) "ꠥ" using this font:
ftcrhb:-GOOG-Noto Sans Syloti Nagri-regular-normal-normal-*-40-*-*-*-*-0-iso10646-1
by these glyphs:
[0 1 43015 24 36 -1 37 28 1 nil]
[0 1 43045 54 0 -16 1 1 11 nil]
with these character(s):
ꠥ (#xa825) SYLOTI NAGRI VOWEL SIGN U
These outputs seem to show that they are composed properly.
Do they appear the same as the attached screenshots in your end?
2684-2685.png
2691-2692.png