Dynamic group ipv6_addresses.ipv6_compressed

Hello,

some time ago i was testing this and it semi worked but now it doesnt work at all. See ticket for previous discussion on this: Device group members disappearing

====================================
Component | Version
--------- | -------
LibreNMS  | 1.70.1
DB Schema | 2020_11_02_164331_add_powerstate_enum_to_vminfo (191)
PHP       | 7.4.13
Python    | 3.6.8
MySQL     | 5.5.68-MariaDB
RRDTool   | 1.4.8
SNMP      | NET-SNMP 5.7.2
OpenSSL   | 
====================================

[OK]    Composer Version: 2.0.8
[OK]    Dependencies up-to-date.
[OK]    Database connection successful
[OK]    Database schema correct

Here is my output of ./poller.php -d -v -h all

RRDtool Output: OK u:0.00 s:0.01 r:3.17
RRDtool Output: RRDtool Output: OK u:0.00 s:0.01 r:3.17
Enabling graphs: 

Polled in 3.173 seconds
### Start Device Groups ###
### End Device Groups, runtime: 0.0055s ### 

#### Start Alerts ####
#### End Alerts ####
Hostname:    h-txa-1n-ap-3
Device ID:   488
OS:          ios

My dynamic group settings: (ipv6 redacted)

TEST_GROUP		Dynamic	0	ipv6_addresses.ipv6_compressed LIKE '%xxxx:xxxx:9%'

Any input one what I can do?

Thank you,
Dave