Error reading buffer from masterserver (only using punch)

[MrGentle]

I'm trying to set up a project running with gmnet punch only.
my master server is running version 1.2.5
my punch version is 1.2.4 (should be latest)

-- UDPHP : SERVER - Starting...
-- UDPHP : SERVER - Started!
-- UDPHP : SERVER - Reconnecting to master Server - Sent UDP Packet
-- UDPHP : SERVER - Reconnecting to master Server - Reconnected via TCP
-- UDPHP : SERVER - Reconnecting to master Server - Sent TCP Packet
-- UDPHP : SERVER - Reconnected to master Server.
-- UDPHP : MAIN - Requested server list.
-- UDPHP : MAIN - Downloader: Got message from master server
Buffer size (1):141
-- UDPHP : MAIN - [{"ip":"my ip is herere but censored","data1":"0.1","data2":"","data3":"","data4":"","data5":"","data6":"","data7":"","data8":"","createdTime":1554582647}]

-- UDPHP : MAIN - Downloader: Got lobby data.
-- UDPHP : CLIENT 100006 - Starting...
-- UDPHP : CLIENT 100006 - Setting up hole punch.
-- UDPHP : CLIENT 100006 - Requesting connection Data - Sent UDP Packet
-- UDPHP : CLIENT 100006 - Requesting connection Data - Connected via TCP
-- UDPHP : CLIENT 100006 - Requesting connection Data - Sent TCP Packet
-- UDPHP : CLIENT 100006 - Started
-- UDPHP : CLIENT 100006 - Got message from master server

FATAL ERROR in
action number 1
of Async Event: Networking
for object obj_client:


Attempting to read from outside the buffer, returning 0
 at gml_Script_udphp_clientNetworking (line 40) -     var com = buffer_read(in_buff, buffer_s8 );
############################################################################################
--------------------------------------------------------------------------------------------
stack frame is
gml_Script_udphp_clientNetworking (line 40)
called from - gml_Object_obj_client_Other_68 (line 3) - 	udphp_clientNetworking(client_id);

Any idea what is going on?

[The-any-Key]

As the master server use TCP there is a bug in GM that sometimes cut of the TCP stream. You can try check the size of the incoming stream. And if it just 1 or 2 byte you can ignore it and let the user try again.