Some setups are failing during loading whilst png files / data blobs are trying to be processed which appears to be a side-effect of trying to better deal with incomplete png data taking the whole process down (I get the irony of a fix making it worse for some). This will likely be reverted with a post-release patch provided.
The export actions may crash whilst the OS dialog to determine the location & name of the exported file is being created.
Seeking in some Opus files may not work correctly due to a change to try to better handle invalid files breaking internal look-ups.
The shuffle table may not act as expected & is still to be finished being re-worked. This was also present in the 216xx builds & possibly 215xx.