More Asset Browser updates; New guided tour; Bug fixes.
In addition to Tom's comment, we're not aware of such complaints from any other beta users at the moment. Mysterious problems not experienced by other users are frequently caused by browser extensions interfering with Construct, rather than being caused by Construct itself, so try disabling any browser extensions you have installed. Otherwise in order to investigate any stability issues with Construct you'd need to file an issue following all the guidelines.