Undefined Character (U+140EF)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𔃯` `𔃯`
UTF-8 Encoding:	`0xF0 0x94 0x83 0xAF`
UTF-16 Encoding:	`0xD810 0xDCEF`
UTF-32 Encoding:	`0x000140EF`

References