Come let us know about it on the Hot Lava (Open Beta) Bug Tracker! Before sending your bug report, check out the list of logs, files, and useful information for bug reports.
In-Game Bug Reporting Tool
Run into a bug and need to report it immediately? You can also do that in-game now. While in a level, press your Esc key and choose Report a Bug. Just fill out the form with the repro steps, choose the bug category and click on Submit to send it to the Hot Lava team.