InterfaceError raised when statement is 8192~ characters

import mariadb

for x in range(8125, 8140):

    connection = mariadb.connection(user='root', database = 'test')

    cursor = connection.cursor()

    cursor.execute("CREATE TABLE IF NOT EXISTS `testing` (`text` MEDIUMTEXT)")

    try:

        cursor.execute("INSERT INTO testing (`text`) VALUES (?)", (' ' * x, ))

    except Exception as e:

        print(f" Bad at {x}: {e!r} raised")

    else:

        print(f"Good at {x}")

Good at 8125

Good at 8126

Good at 8127

Good at 8128

Good at 8129

Good at 8130

 Bad at 8131: InterfaceError('') raised

 Bad at 8132: InterfaceError('') raised

 Bad at 8133: InterfaceError('') raised

 Bad at 8134: InterfaceError('') raised

Good at 8135

Good at 8136

Good at 8137

Good at 8138

Good at 8139