Address: bc1qlx8d65ytsp3u2vn24xucjwnsd9vv7h3fwy6fzy
Message: I have made another test run again
Signature: IAtGxZ7M2sOhkPNibfWjrLI2ebUx2U5odnBUTGhjOWtJWby4FrCgJ2sXE9OFOb0dv3P3flyAP8oJ/SqYe0/Gfo0=
Please check this image below to see the verification messages, this is from mobile App on coinomi
Try using legacy bitcoin address (starting with 1...) since segwit address can't be verified.
-snip- I have tried to verify your sign message many times from brainwallet and
https://tools.bitcoin.com/verify-message/ but it didn't work
Bitcoin Core
[1] and Brainwallet
[2] cannot verify the SegWit address sign message.
Earlier I tried to verify the Cryptomiles1 sign message using Electrum; the results are "Signature verified".

[1] https://bitcointalk.org/index.php?topic=5204167.msg53946278#msg53946278[2] I found the following thread:
How to verify SegWit Signature with Brainwallet? (by converting the Bech32 address to a Legacy address first).
From this as you said verified but let og check and very too let us know is from his end