Yes, I think so too. I’ve seen that @Kefeng already reported it in github, thank you!
I’m copying this thread here because it is also about the same problem and it gives more information about what is happening: https://community.plotly.com/t/long-callback-interval-1-problems/60819/4
While it’s solved, I tried to find a workaround. I tried using the cache_args_to_skip argument and also cancel (with long_call_interval_1) but either it doesn’t run at all or it runs twice 
I’ll keep trying and I’ll post it here if I find it!