Undefined Character (U+1DFE4)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𝿤` `𝿤`
UTF-8 Encoding:	`0xF0 0x9D 0xBF 0xA4`
UTF-16 Encoding:	`0xD837 0xDFE4`
UTF-32 Encoding:	`0x0001DFE4`

References