As a former software engineer, technical lead and software architect for major aerospace software systems, I know a thing or two about what happens when proper design, development test and release procedures get short-cutted and this appears to be what happened here. The result is a product which can either go forward with lots of band-aids, bailing wire and spit holding it together (making maintenance a nightmare with limited reliability and success) OR a product that can be withdraw, reworked without the pressure of dealing with multiple daily reports of wide-ranging and serious bugs.
I am attempting to be constructive based on my experience with software development in both types of environments - when development followed a sound set procedure through the process from design to release, and when shortcuts were taken to satisfy political, management, or marketing desires. I'm merely asking Sinew Software to withdraw a release that was clearly "not ready for prime time", and redo the effort properly with the technical process, issues and progress dictating release schedules rather than whatever pushed this one out the door before it was finished. Other major software development organizations have done this in the past, and users who see a company ready to admit a mistake then take proper action to fix it generally end up with higher regard and satisfaction with the developer than for those developers who "press on" with a bug-laden product, trying to pretend all is copacetic. In the end, the latter decision hurts the bottom line and ends up defeating whatever management / marketing decision drove the "pre-mature" release.
I have downgraded to version 5, turned off auto-update for the extensions in the various browser that allow that, instead of having purchased the prime option on v 6 which was my intention though I did not need the features, but more as a reward for a an application and browser extensions I used and found perfectly met my need. But now, unless they take the proper action to fix ALL the issues in version 6 (withdraw, re-work, re-release being the proper way instead of endless little ad-hoc patches), I will be done with any / all products related to Sinew Software an use one of the password managers built into my internet security suites or available from another vendor at a reasonable price.