Line start(including title) with <3 follow nothing or some like characters(\n,.,() will convert to a love symbol?Is there some encoding problem with conversion.

[utmcontent]

And other numbers work fine currently. sample markdown file for conversion.

<3x
<3a
<3b
<3c
<3d
<3e
<3(
<3(21312
<3f
3
3...
<3+
<3=
<3@
eeeedadad<3#
thisss<3$
<3.
# <3`
# <3'
## < 3
<321191
----------------------------------------
<4x
<4a
<4b
<4c
<4d
<4e
<4(
<4(21412
<4f
4
4...
<4+
<4=
<4@
eeeedadad<4#
thisss<4$
<4.
<4`
<4'
< 4
<321141
-----------------------------------------
<9x
<9a
<9b
<9c
<9d
<9e
<9(
<9(21912
<9f
9
9...
<9+
<9=
<9@
eeeedadad<9#
thisss<9$
<9.
<9`
<9'
< 9
<3211911

display the issue in gif: