ea-nginx reverse proxy and clearing cache on triggered reload

Hello. We are trying to implement ea-nginx reverse proxy with caching.

While it works perfectly for a couple of hours at some point the service got reloaded and all the cache is cleared.

сеп 05 11:35:48 g3.theworkpc.com systemd[1]: Starting nginx - high performance web server...
сеп 05 11:35:49 g3.theworkpc.com systemd[1]: Started nginx - high performance web server.
сеп 05 12:06:53 g3.theworkpc.com systemd[1]: Reloading nginx - high performance web server.
сеп 05 12:06:53 g3.theworkpc.com systemd[1]: Reloaded nginx - high performance web server.
сеп 05 12:08:49 g3.theworkpc.com systemd[1]: Reloading nginx - high performance web server.
сеп 05 12:08:49 g3.theworkpc.com systemd[1]: Reloaded nginx - high performance web server.
сеп 05 12:09:42 g3.theworkpc.com systemd[1]: Reloading nginx - high performance web server.
сеп 05 12:09:42 g3.theworkpc.com systemd[1]: Reloaded nginx - high performance web server.
сеп 05 12:10:49 g3.theworkpc.com systemd[1]: Reloading nginx - high performance web server.
сеп 05 12:10:49 g3.theworkpc.com systemd[1]: Reloaded nginx - high performance web server.

To summarize: Caching worked between 11:35:49 and 12:06:53 when the service got reloaded.

I tried entering limits even smaller than 1 day (23h) and the issue still persists. 

Here is my cache.json config:

{ 
  "enabled" : true, 
  "inactive_time" : "128d", 
  "levels" : "1:2", 
  "logging" : false, 
  "proxy_cache_background_update" : "on", 
  "proxy_cache_lock" : "off", 
  "proxy_cache_min_uses" : 1, 
  "proxy_cache_revalidate" : "off", 
  "proxy_cache_use_stale" : "error timeout http_429 http_500 http_502 http_503 http_504", 
  "proxy_cache_valid" : { 
     "200" : "128d" 
  }, 
  "x_cache_header" : true, 
  "zone_size" : "100m" 
}

Can we solve that issue. What may be triggering this?

We would like to keep the cache for longer periods (128days for example)

I saw similar behavior in that link but it seems that there is not a solution for it: https://support.cpanel.net/hc/en-us/community/posts/19164316453527-What-type-of-events-or-periodic-task-trigger-Cpanel-NGINX-with-Reverse-Proxy-to-delete-the-cached-files?input_string=ea-nginx%20reverse%20proxy%20and%20clearing%20cache%20on%20triggered%20reload 

We are running AlmaLinux 8.8 with Cpanel 122.0 (build 5) but it happened on varios other RHEL based OSs.

Thanks in advance.