Hi, I just received my Hubitat Elevation. Currently running version: 18.104.22.168
An unexpected error has occurred trying to load the app. Check Logs for more information.
Error: No signature of method: java.lang.Long.getAt() is applicable for argument types: (java.lang.Integer) values:  Possible solutions: getAt(java.lang.String), next(), putAt(java.lang.String, java.lang.Object), wait(), grep(), getClass()
I can reproduce this error (button device or dimmer device doesn't seem to matter; my guess is it's in the app). Tagging @bravenel since I believe he would be the one to investigate.
To summarize the video above, here is the error that happens:
...immediately after entering a "By this amount" value in BC 3.1 as, for example, below:
This is a known bug, fix in upcoming 2.2.3 release.
You can work-around using Rule Machine for that one button function.
My advice would be to try the community based Advanced Button Controller app. It is an intuitive and easy to use app for buttons. Many people prefer this over the built-in button app.
Thanks for the fast replies. I'm glad to know that this a known issue and that there are plans to address it. That's great!
I ended up using the Rule Machine app as suggested which worked just fine, I'll give the Advanced Button Controller a try as well, however I'll have to learn how to install it, I'll find my way through