Promtail errors on rotating logs

Grafana Configuration
1

grafana 8.3.3 // promtail 2.3.0

I regulary get a promtail error:

promtail-linux-arm[12676]: level=error ts=2022-01-12T09:54:16.087596489Z caller=client.go:355 component=client host=192.168.2.57:3100 msg="final error sending batch" status=400 error="server returned HTTP status 400 Bad Request (400): entry with timestamp 2022-01-12 09:54:05.981574586 +0000 UTC ignored, reason: 'entry out of order' for stream: {filename=\"/etc/unbound/log/unbound.log\", job=\"unboundlogs\"},"

my promtail config:

server:
  http_listen_port: 9080
  grpc_listen_port: 0
  log_level: error

positions:
  filename: /tmp/positions.yaml

clients:
  - url: http://192.168.2.57:3100/loki/api/v1/push

scrape_configs:
- job_name: system
  static_configs:
  - targets:
      - localhost
    labels:
      job: redirectlogs
      __path__: /var/log/pihole/redirect.log
- job_name: system2
  static_configs:
  - targets:
      - localhost
    labels:
      job: unboundlogs
      __path__: /etc/unbound/log/unbound.log

the unbound log rotates daily

/etc/unbound/log/unbound.log {
    daily
    rotate 1
    copytruncate
    delaycompress
    compress
    notifempty
    missingok

get a lot of errors on the unbound log (very active log), fewer errors on the redirect log (also daily rotates)

anything I can do / configure to eliminate these errors, I sometimes need to restart promtail to get results in the dashboard, using this datasource?