Converting Publickey from PKCS1 to PKCS8 format gives "unable to load Public Key" Error

Question

I have a public key which has header -----BEGIN RSA PUBLIC KEY-----. I tried to covert this to -----BEGIN PUBLIC KEY----- this type by using below command referred from, How can I transform between the two styles of public key format, one "BEGIN RSA PUBLIC KEY", the other is "BEGIN PUBLIC KEY"

openssl rsa -RSAPublicKey_in -in pub.key -pubout

but it throws,

unable to load Public Key 140185314247104:error:0D0680A8:asn1 encoding routines:asn1_check_tlen:wrong tag:../crypto/asn1/tasn_dec.c:1149: 140185314247104:error:0D06C03A:asn1 encoding routines:asn1_d2i_ex_primitive:nested asn1 error:../crypto/asn1/tasn_dec.c:713: 140185314247104:error:0D08303A:asn1 encoding routines:asn1_template_noexp_d2i:nested asn1 error:../crypto/asn1/tasn_dec.c:646:Field=n, Type=RSAPublicKey 140185314247104:error:0906700D:PEM routines:PEM_ASN1_read_bio:ASN1 lib:../crypto/pem/pem_oth.c:33:

but the interesting fact here is, by using the same public key, I am able to verify the signature of a JWT token via jwt.io site.

What is happening here? Can someone help me to understand this scenario?

My public key:

-----BEGIN RSA PUBLIC KEY-----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-----END RSA PUBLIC KEY-----