AFAIK, the last two builds are same for Dev and Beta, gives you chance to switch from Dev to Beta, if you like.
Which build you're on? If it's latest build, make sure to drop feedback about issues you're facing.
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When is MS going to fix the debacle with windows insider BETA channel in regards to the latest builds watermark and frozen systray icons because a DEV build was released through the BETA Channel
AFAIK, the last two builds are same for Dev and Beta, gives you chance to switch from Dev to Beta, if you like.
Which build you're on? If it's latest build, make sure to drop feedback about issues you're facing.
Like you mentioned it is Beta channel and it is under testing and development and such issues are expected. In case they are known issue , it means Microsoft aware and will work to fix them and in case it is new issue , you may report it using the Feedback Hub app and you won't see these issues in the stable release.