OME 4.2 - Discovery of MX7000 Chassis are failing

Hello,

I think, that I found a new problem with version 4.2.

My Setup:
I upgraded OME from 4.1.0 (Build 237) to 4.2.0.89

OME is managing 500+ devices.
30+ MX7000 Chassis
These Chassis are in some groups in Hardware as well as in OME

The Discoveries during the upgrade process are failing.

In the log of a failed task it stops with Completed With Errors as you can see here:
Results:
Target System: chassis20.mydomain.com
Messages:
Running
Discovery of target chassis20.mydomain.com started.
Discovery target resolved to IP 10.0.7.208 .
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Task Failed. Completed With Errors.

The Log of an old (working) task:
Results:
Target System: chassis20.mydomain.com
Messages:
Running
Discovery of target chassis20.mydomain.com started.
Discovery target resolved to IP 10.0.7.208 .
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
Advanced Server Configuration feature is enabled.
Server Power Monitoring feature is enabled.
-----------------------------------------------------
Sub Device Discovery
D -- > Attempt Discovery
N -- > Cannot Discover - Invalid IP
X -- > No Action
-----------------------------------------------------
NOTE : Sub device discovery exceptions:
* Not all IOMs detailed in execution summary will be attempted for discovery.
-----------------------------------------------------
1) chassis24:blade100 [BLADE] : 10.0.7.41 :[D]
2) chassis21:blade076 [BLADE] : 10.0.6.128 :[D]
3) chassis20:blade069 [BLADE] : 10.0.6.121 :[D]
4) chassis20:blade070 [BLADE] : 10.0.6.122 :[D]
5) chassis21:blade079 [BLADE] : 10.0.6.131 :[D]
6) chassis20:blade071 [BLADE] : 10.0.6.123 :[D]
7) chassis25:blade106 [BLADE] : 10.0.7.61 :[D]
8) chassis25:blade108 [BLADE] : 10.0.7.63 :[D]
9) chassis21:blade073 [BLADE] : 10.0.6.125 :[D]
10) chassis24:blade099 [BLADE] : 10.0.7.40 :[D]
11) chassis21:blade077 [BLADE] : 10.0.6.129 :[D]
12) chassis24:blade102 [BLADE] : 10.0.7.43 :[D]
13) chassis24:blade098 [BLADE] : 10.0.7.39 :[D]
14) chassis25:blade107 [BLADE] : 10.0.7.62 :[D]
15) chassis25:blade105 [BLADE] : 10.0.7.60 :[D]
16) chassis21:blade075 [BLADE] : 10.0.6.127 :[D]
17) chassis24:blade103 [BLADE] : 10.0.7.44 :[D]
18) chassis20:blade065 [BLADE] : 10.0.6.117 :[D]
19) chassis20:blade068 [BLADE] : 10.0.6.120 :[D]
20) chassis21:blade074 [BLADE] : 10.0.6.126 :[D]
21) chassis24:blade104 [BLADE] : 10.0.7.45 :[D]
22) chassis25:blade111 [BLADE] : 10.0.7.66 :[D]
23) chassis20:blade067 [BLADE] : 10.0.6.119 :[D]
24) chassis24:blade097 [BLADE] : 10.0.7.38 :[D]
25) chassis25:blade109 [BLADE] : 10.0.7.64 :[D]
26) chassis21:blade080 [BLADE] : 10.0.6.132 :[D]
27) chassis20:blade072 [BLADE] : 10.0.6.124 :[D]
28) chassis20:blade066 [BLADE] : 10.0.6.118 :[D]
29) chassis21:blade078 [BLADE] : 10.0.6.130 :[D]
30) chassis24:blade101 [BLADE] : 10.0.7.42 :[D]
31) chassis25:blade112 [BLADE] : 10.0.7.67 :[D]
32) chassis25:blade110 [BLADE] : 10.0.7.65 :[D]
-----------------------------------------------------
Number of Sub devices: 32
Number of Sub devices attempted for discovery: 32
Number of Sub devices not attempted for discovery: 0
-----------------------------------------------------
Completed

I hope, that you can solve this issue with the next release.

Kind Regards
Christian