I upgraded from v1.5.3 to v1.6.1 and the nginx related problem I was having in v1.6.0 is no longer there. Therefore the problem has been resolved but I don't know why.
@julian Awesome, thanks! I will keep an eye on that.
@pitaj Thanks for your tipp, i will try to optimize nginx.
@btw6391 are you using Nginx in front? Search this forum for the error and check those posts for a tweak to Nginx.
Nvm I fixed it! Didn't properly follow the guide at https://docs.nodebb.org/en/latest/configuring/proxies.html
I just switched to 0.8.2 today and was able to dismiss notifications on my Macbook.