BacNetIP - issues

[Re-G]

Hi. 

I have problem witch BacNet IP client (app). We have to integrate an AHU made by Svegon (GOLD).
Application found a device but if i start looking for data points i have as a result those scenario:

• application after a few seconds found no data points at all;
  
• application keep looking for data points and keep looking, and .... - keep looking endlessly;
  
• if i application found data points:
  - can't add (mapping) points as virtual one - crossed out symbol of cloud;- i can't remove already mapped points as virtual one - i have massage - the point no is not existing on this no. of device (BACNET address)- if i can add points - adding points take ages, and can be only not virtual one.

I tried:

• remove app, and reinstall app again - app after new installation found BacNet device - but data points are already mapped - that same behavior of LM5 with adding points;
  
• factory reset of LM5 - installation of app - app after new installation found BacNet device - but data points are already mapped - that same behavior of LM5 with adding points.
  

I tried web browsers: Chrome, Firefox, Safari.
I tried on LM firmware 2022 RC1, 2022 RC1 and with this one https://dl.openrb.com/lm-22-imx6/lm5m3ex-20221205.img
also witch 20211215.

Any ideas what's going on?

Thanks for help.