# Issue with Broker Decommissioning in Lenses After Node Pool Change

**URL:** <https://ask.lenses.io/t/issue-with-broker-decommissioning-in-lenses-after-node-pool-change/499>\
**Category:** Lenses\
**Tags:** strimzi, kafka, lenses, decomission\
**Created:** [August 24, 2026, 8:56am UTC](https://ask.lenses.io/t/issue-with-broker-decommissioning-in-lenses-after-node-pool-change/499 "2026-08-24T08:56:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![iMajna](https://dub1.discourse-cdn.com/flex017/user_avatar/ask.lenses.io/imajna/32/116_2.png) [@iMajna](https://ask.lenses.io/u/iMajna)\
**Post date:** [August 24, 2026, 8:56am UTC](https://ask.lenses.io/t/issue-with-broker-decommissioning-in-lenses-after-node-pool-change/499/1 "2026-08-24T08:56:45Z")

</div>

Hi,

We are running a Strimzi cluster using KRaft and Node Pools. After switching our storage backend, we created a new node pool and removed the old one. Lenses correctly identified the new brokers, but it still displays the old, decommissioned ones. As a result, attempting to open the broker overview leads to the following error message:

```auto
TypeError: Cannot read properties of null (reading 'activeControllers')

TypeError: Cannot read properties of null (reading 'activeControllers')
    at https://lenses-environment.example.com/js/app.f90739b5ef17f944e3a4.js:2:710988
    at Array.every (<anonymous>)
    at https://lenses-environment.example.com/js/app.f90739b5ef17f944e3a4.js:2:710931
    at Object.useMemo (https://lenses-environment.example.com/js/vendors~app.2200c238fad78ad24d71.js:2:2675968)
    at t.useMemo (https://lenses-environment.example.com/js/vendors~app.2200c238fad78ad24d71.js:2:2612988)
    at Ee (https://lenses-environment.example.com/js/app.f90739b5ef17f944e3a4.js:2:710902)
    at Yi (https://lenses-environment.example.com/js/vendors~app.2200c238fad78ad24d71.js:2:2671116)
    at ms (https://lenses-environment.example.com/js/vendors~app.2200c238fad78ad24d71.js:2:2717355)
    at lu (https://lenses-environment.example.com/js/vendors~app.2200c238fad78ad24d71.js:2:2709903)
    at uu (https://lenses-environment.example.com/js/vendors~app.2200c238fad78ad24d71.js:2:2709828)

```

We’ve reviewed the documentation on broker decommissioning ([link](https://help.lenses.io/using-lenses/monitor/services/#broker-decommission)), but wanted to ask if there’s an alternative way to manually remove the old brokers — perhaps directly from the database — as a temporary workaround?