Good news :
There was NO continuity between pins 1+2 on each side when relay is energized . On the 3+4 pins no problem = continuity exists with 0.15ohm stable reading.
What I did was , playing a bit and moving pins # 2 , 1 millimeter and also the same on the other side , and Vualla ! it maybe was bent a bit .
Strange that also on the other side was the same.
Anyway , got the relay back in place on the pcb , and soldered everything how should be , got 48V to the coil pins and checked -
1+2 - conduction.
3+4 - conduction.
When relay is not energized - No continuity .
Things are ok now.