PubSub lib issue?

[once2go]

Hi.
Cant figure out what the issue happen to me, seams tm it's something wrong with PubSub client but before wanna ask somebody if my setup is correct:
So, I already setup sketch with proper config: mqtt shadow, cert der, private key, even root CA.
My log:

WiFi connected
IP address:
192.168.2.73
Heap: 45744
Success to open cert file
cert loaded
Success to open private cert file
private key loaded
Success to open ca
ca loaded
Heap: 36976
Attempting MQTT connection...pm open,type:2 0
connected
hello world #1
Heap: 20680
Attempting MQTT connection...connected
hello world #2
Heap: 20680
Attempting MQTT connection...connected
hello world #3
Heap: 20680
Attempting MQTT connection...connected
hello world #4
Heap: 20680
Attempting MQTT connection...connected
hello world #5
Heap: 20680
Attempting MQTT connection...connected
hello world #6
Heap: 20680
Attempting MQTT connection...connected
hello world #7
Heap: 20680
Attempting MQTT connection...connected
hello world #8
Heap: 20680
Attempting MQTT connection...connected
hello world #9
Heap: 20680
Attempting MQTT connection...connected
hello world #10
Heap: 20680

When I check my IoT monitor status, it shows me that I have "n number of successful connection" "n number of inbound messages", but when I go to test tool and try to subscribe to "outTopic" there is no incoming messages(device is ON and messages sends looks like successfully due to UART log). I even try to send some messages to "inTopic" from test tool but nothing happened(no incoming messages on device during ON session).
My suggestion is that something wrong with PubSubClient from Library manager(my one https://pubsubclient.knolleary.net/ 2.6.0).
So if anyone still use this library with config from samples, let me may be I do something wrong.
If my suggestions is wrong, can you please advise me where I should look to fix an issue.
Thanks

[copercini]

It seems working, check if your endpoint region (for example us-west-2) is the same of the web test tool

additionally, you can try subscribe to all topics, using the wildcard #

[once2go]

Regenerate new certificate and its help_
Weird
Any way thanks for quick response and amazing example!