Hello.

This error only indicates that the web server in the web browser cannot display more than 900 bytes for feedback. This restriction is intended to ensure that large values in feedbacks do not cause the browser to crash. The size of the feedback in iRidium server is limited only by the available memory. If the database recorded the entire line, then everything works correctly. GetFeedback() method can get the entire string.

Hello.

You need to specify saving in the database in the feedback settings, in your case this is a string:

Then the values in the database will be saved:

Hello.

We'll let you know when the fix is in the official release.

Hello.

The bug related to deleting logs from the server is fixed in release 1.3.10.

Hello.

T26 we have not checked. According to the description on the official website, this is a development of the T25 model, so the instruction for the T25 will probably be applicable.

Hello.

Testing of Raspberry Pi 3 B+ is currently not completed. Therefore, the use of iRidium server on it is at your risk.

Добрый день.

Значит вопрос с драйвер SNMP закрываем.

По производительности: создайте простой проект с драйвером SNMP и выведите на графический элемент любое значение. Если тормозить не будет, значит причина не в i3 pro.