Undefined Character (U+13FFE)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𓿾` `𓿾`
UTF-8 Encoding:	`0xF0 0x93 0xBF 0xBE`
UTF-16 Encoding:	`0xD80F 0xDFFE`
UTF-32 Encoding:	`0x00013FFE`

References