Here are more details:
1. The message I try to sign: Claim_HEX_to_0x3A72cA4d32d272CC02832F4096a40C2c326DfFfb
2. the address I use: bc1q63tz9rvlnjxpz39nvueuu49t6m7cygfynj6krw
3. the signature I get: IFkS40AxIuRGDN/vnjwavfV6R00h3MKArtDB7tpBbnqIMc6WSGIQm/wm4lN7JVbY6jbeMf27x8VOqI6azgwz2Q==
"
Wrong Signature" at my end, too. Probably bad copy->paste of the signature or message...
Anyways, you can just sign the same message again, it should give you the correct signature.
Electrum will provide the same signature when given the same message, if it's still the same, this must be a bug.