Custom Metafield - can't save due to validations has duplicate choices

[remz1234]

I'm trying to create a custom metafield (a single line text & list of values) but when I try to save it it says  validations has duplicate choices. I can't seem to find the duplicate validation/s here: 

Validations:

C13
C14
C19
C20
C14 to C5
C14 to C7
C14 to C13
C14 to C15
C14 to C19
C14 to C21
C14 to NEMA 5-15R
C14 to NEMA 6-20R
C14 to NEMA L6-20R
C19 to NEMA L6-20P
C20 to C13
C20 to C15
C20 to C19
C20 to C21
C20 to NEMA 5-15R
C20 to NEMA L6-20R
C20 to NEMA L6-30R
NEMA 5-15P to IEC60320 C13
NEMA 5-15 to C13
NEMA 5-15 to C19
NEMA 5-15P to NEMA 5-15R
NEMA 5-15P to L5-20R
NEMA 5-15P to Unterminated Open ROJ
NEMA 5-20 to C19
NEMA 5-20 to Locking NEMA L5
NEMA 5-20 to NEMA 5-15R
NEMA 5-20 to NEMA 5-20R
NEMA 5-20P to NEMA L5-20R
NEMA L5-20P to NEMA L5-30R
NEMA 5-20 to Locking NEMA L5-30R
NEMA L5-30P to NEMA 5-15/20R
NEMA L5-20P to NEMA 5-20R
NEMA L5-30P to NEMA L5-20R
NEMA L5-30P to NEMA L5-30R
NEMA 6-15P to C13
NEMA 6-20P to C13
NEMA L6-20 to C19
NEMA L6-20 to C21
NEMA L6-20 to NEMA L6-20
NEMA L6-20 to NEMA L6-20R
NEMA L6-20 to NEMA L6-30R
NEMA L6-20P to C19
NEMA L6-30P to C19
NEMA L6-30P to Mounted C19
NEMA L6-20P to NEMA L6-30R
NEMA L6-30P to NEMA L6-30R
NEMA L15-30P to L21
NEMA L15-30 Male Plug to L15-30
NEMA L21-30 Male Plug to L21-30
GB2099 to IEC60320 C13
Schuko to IEC60320 C13
BS546 (India) to IEC60320 C19
BS1363 (UK) to IEC60320 C13

[EvinceDev]

Hello @remz1234,
Duplicate choice, are C14 to C7, C14 to C13, NEMA 5-15P to C13, NEMA 5-20 to Locking NEMA L5 and NEMA L5-30P to NEMA L5-20R.
Here removed Duplicate onces

Single-line text validations:
C13
C14
C19
C20
C14 to C5
C14 to C7
C14 to C15
C14 to C19
C14 to C21
C14 to NEMA 5-15R
C14 to NEMA 6-20R
C14 to NEMA L6-20R
C19 to NEMA L6-20P
C20 to C13
C20 to C15
C20 to C19
C20 to C21
C20 to NEMA 5-15R
C20 to NEMA L6-20R
C20 to NEMA L6-30R
NEMA 5-15P to IEC60320 C13
NEMA 5-15 to C13
NEMA 5-15 to C19
NEMA 5-15P to NEMA 5-15R
NEMA 5-15P to L5-20R
NEMA 5-15P to Unterminated Open ROJ
NEMA 5-20 to C19
NEMA 5-20 to Locking NEMA L5
NEMA 5-20 to NEMA 5-15R
NEMA 5-20 to NEMA 5-20R
NEMA 5-20P to NEMA L5-20R
NEMA L5-20P to NEMA L5-30R
NEMA 5-20 to Locking NEMA L5-30R
NEMA L5-30P to NEMA 5-15/20R
NEMA L5-20P to NEMA 5-20R
NEMA L5-30P to NEMA L5-20R
NEMA L5-30P to NEMA L5-30R
NEMA 6-15P to C13
NEMA 6-20P to C13
NEMA L6-20 to C19
NEMA L6-20 to C21
NEMA L6-20 to NEMA L6-20
NEMA L6-20 to NEMA L6-20R
NEMA L6-20 to NEMA L6-30R
NEMA L6-20P to C19
NEMA L6-30P to C19
NEMA L6-30P to Mounted C19
NEMA L6-20P to NEMA L6-30R
NEMA L6-30P to NEMA L6-30R
NEMA L15-30P to L21
NEMA L15-30 Male Plug to L15-30
NEMA L21-30 Male Plug to L21-30
GB2099 to IEC60320 C13
Schuko to IEC60320 C13
BS546 (India) to IEC60320 C19
BS1363 (UK) to IEC60320 C13