An Tao

Try the version of 1.7.5

@bradleysmith thanks for your feedback, what OS are you using? and how did you install drogon into your system?

> Hi, > > I can repeat the problem on two systems: > > Ubuntu 20.04 and MX Linux. > > Installed drogon by doing a git clone, mkdir build,...

Do you use the drogon::orm::Mapper template?

That's weird, please paste your code here, I will do some tests.

@tysenmoore-xse thanks for your feed back. Which version of drogon did you used? would u please make a simple demo to reproduce this issue?

I can't reproduce the issue in my MacOS book, what's the environment of yours?

I checked your code, the wsClient and wsConn objects can be written and read in multiple threads at the same time (if your IO threads are multiple), this is not...

I think you'd better use "value capture" instead of "reference capture".

```c++ drogon::app().getLoop()->queueInLoop([wsConn, count]() ...) ```