Nmap says port is open after I tried to close it

Hi all-

I am running kubuntu 18.04. My UFW looks like this:

Status: active

To Action From
-- ------ ----
6600/tcp DENY Anywhere
6600/udp DENY Anywhere
6600 DENY Anywhere
6600/tcp (v6) DENY Anywhere (v6)
6600/udp (v6) DENY Anywhere (v6)
6600 (v6) DENY Anywhere (v6)

6600 DENY OUT Anywhere
6600 (v6) DENY OUT Anywhere (v6)

I tried this scan as a regular user:
nmap -p0- -v -A -T4 myipaddress
PORT STATE SERVICE VERSION
1716/tcp open xmsg?
6600/tcp open mpd Music Player Daemon 0.20.0

also:
nmap -p 6600 myipaddress
PORT STATE SERVICE
6600/tcp open mshvlm

I don't get it. I don't want 6600 open but i can't
change the status on a scan.

The other port has kdeconnect listening so I don't mind.

The 2 ports scans are conflicting what service they are.

Any ideas why it won't close or go to filtered?

It is being caused by something called syn-ack.
I am not sure why it doesn't get the acknowledgement so it can be marked filtered
or closed.

thanks,
roboloki