Hi Mauricio,
Thanks for confirming the 100 kOhm! This is a MPPT RS 450/200. It happened on both version 1.16 and after I updated to 1.19. VictronConnect in both cases was at 6.11. VictronConnect shows the 1.3kOhm both with a direct bluetooth connection to the RS and with the indirect connection through VRM (in VictronConnect). There are three strings of panels attached to the RS, the fourth input is not in use, in case that helps.
Maybe the real value is 1.3 MOhm, and there’s a simple display error in VictronConnect?