Armbian 5.20 pure-ftpd passive mode (ip_conntrack_ftp ?) problem

I have a BananaPi M1+ running pure-ftpd, it was fine when using Armbian 5.14, but I have a problem after upgraded to Armbian 5.20. Here is the output of the filezilla client :

 

Status: Connecting to 192.168.1.130:21...

Status: Connection established, waiting for welcome message...

Status: Logged in

Status: Retrieving directory listing...

Command: PWD

Response: 257 "/" is your current location

Command: TYPE I

Response: 200 TYPE is now 8-bit binary

Command: PASV

Response: 227 Entering Passive Mode (192,168,1,130,106,164)

Command: MLSD

Error: Connection timed out after 20 seconds of inactivity

Error: Failed to retrieve directory listing

If I disable the firewall by clearing all the iptables rules, filezilla can connect to pure-ftpd without problem.