There is still no common standard to sign from bc1 address... so might be some strange combination of characters that mislead Electrum's signer... could you sign if HEX string in your message would be removed?
There's no problem with message. I signed the same message using my address and everything went well.
-----BEGIN BITCOIN SIGNED MESSAGE-----
Claim_HEX_to_0x3A72cA4d32d272CC02832F4096a40C2c326DfFfb
-----BEGIN SIGNATURE-----
bc1q9yfe07gfytzf200qqg6cm3wkugdmts6tj4myhc
HzeFm8xePVWoN59+HinI04kEzUQONqwWaWMpzzMWkhi7DNhIUkVjSCj5soGp6DkUEVxo8uslcm03kRUKpXV+W3I=
-----END BITCOIN SIGNED MESSAGE-----
Thank you for your advice.
I tried to put the message by using keyboard, but it didn't help.
The message is still the same and incorrect.
As soon as you generate the signature, Electrum allows you to click the verify signature button. Do you still get the "wrong signature" message?