UI views not updated after tile deletion and reuplaod

Hello,
after deleting a tilesets and re-uploading it with the same UID & filename, the heatmap view of this tilesets has still the old file version (in our case the chromosomes got sorted differently)
Uploading the file with a new UID/Filename works fine
I assume it's some redis cache, but haven't had the time to have a closer look.

Steps to reproduce:
curl -u admin:XXXXX -F "datafile=@ABC.mcool" -F "filetype=cooler" -F "datatype=matrix" -F "uid=ABC" -F "coordSystem=mm9" https://higlass.xyz.ac.at/api/v1/tilesets/
curl -u admin:XXXXX -X "DELETE" https://higlass.xyz.ac.at/api/v1/tilesets/ABC/
Change content of ABC.mcool
curl -u admin:XXXXX -F "datafile=@ABC.mcool" -F "filetype=cooler" -F "datatype=matrix" -F "uid=ABC" -F "coordSystem=mm9" https://higlass.xyz.ac.at/api/v1/tilesets/
Check WebUI

Here is the server setup:
- name: 'redis'
image: 'registry.hub.docker.com/library/redis'
tag: '5.0.8-alpine'
uid: 999
gid: 1000
ip: '10.88.0.30'
selinux: true
volumes:
- name: 'data'
path: '/data'
mode: '0700'
- name: 'higlass'
image: 'docker.io/higlass/higlass-docker'
tag: 'v0.6.43'
ip: '10.88.0.10'
uid: 33
gid: 33
selinux: true
volumes:
- name: 'data'
path: '/data'
- name: 'tmp'
path: '/tmp'
- name: 'scripts'
path: '/scripts'
- name: 'uploads'
path: '/var/lib/nginx/body'
mode: '0777'
environment_variables:
SITE_URL: "{{ app_generic_fqdn }}"
UPLOAD_ENABLED: true
PUBLIC_UPLOAD_ENABLED: false
REDIS_HOST: '10.88.0.30'
REDIS_PORT: 6379