The reason for the disappearing comments (and also alarm causes) was that the ringbuffer was not correctly synchronized with historic data when binary files were disabled. Also acknowleding and confirming acknowledge was not correctly updating the ringbuffer in this case. Now, the ringbuffer is correctly kept synchronized and all actions (setting comments, setting alarm causes, acknowleding, confirming acknowledge) work as expected.
The reason for the disappearing comments (and also alarm causes) was that the ringbuffer was not correctly synchronized with historic data when binary files were disabled. Also acknowleding and confirming acknowledge was not correctly updating the ringbuffer in this case. Now, the ringbuffer is correctly kept synchronized and all actions (setting comments, setting alarm causes, acknowleding, confirming acknowledge) work as expected.
Enable local service engine file storage