First, I want to say that I really like your turrets they are brilliant. But we are having problems with the howitzers, when we research them people are unable to join the server and they get the desync message. I then went back to a previous save before the research and it was fine. I would really like to use these howitzers, I have seen them in action for a short time and work really well. Thanks a lot! :)

I am very sorry.
I can not afford to test online with more players.
So, if you have a problem online, it's very difficult to process.

https://forums.factorio.com/viewtopic.php?f=93&t=30865&p=241852#p241852
Can you test with this??

No worries. I will give it a go and get back to you.

Ok, I have fully researched everything and placed howitzers and is running fine with no desync issues. Thank you very much! :)

Thanks for the test! :D
I'll apply it the next time I update.