I successfully use Camtasia 8 on WIN 7 & 8 boxes daily without crashing. The key is the size of the project and perhaps more importantly how many cuts, transitions, etc. you're asking it to perform. Camtasia writes an XML file to keep track of all the modifications you make to the project and that is likely the source of the crashes. You can test this with a simpler project and then see where the trouble begins.
The point was to explain that it does work in general and that if you were to share some project details we might be able to pinpoint what is causing your specific difficulty.
If you think it patronizing to refute an unfounded statement, so be it. If you'd rather not solve the problem and instead stand on a soapbox generalizing, I'll trouble you no further.
it's unfortunate that you've experienced on-going issues; but like Timbre4 says, that is definitely not the norm
I've edited and produced approximately 20,000 projects and videos with Camtasia since 2002; I've worked on Win XP SP2, Vista, Win 7 Pro 64, and here lately, Win 10 Pro; I've successfully used versions 1 through CS 8.6.0. [the latest]; even though it's a 32 bit app, it has always served me very well
As Timbre4 said, it's all in the project layout and scripting [source clips, edits, dimensions, and complexity of project, etc.] I've never run into a project that I couldn't make work; the Library is a particularly powerful tool for doing so
as I recall Clint Eastwood saying in one of his Dirty Harry movies: "a man's got to know his limitations"
this is definitely true re understanding Camtasia, and how to stay within its operating envelope
if you properly build out your project, assuming your PC is up to the task, it will make great videos
you didn't provide any details about the projects that are failing; if you can share those here, maybe we can offer suggestions that might be helpful?
I've only had to contact TechSmith tech support a few times; they's always been very helpful and professional. And, not all issues can be resolved, but there are usually workarounds that can help
My latest tech support contact was actually this AM; I recently upgraded to Win 10 Pro, and found an issue with captured cursor sharpness
On contacting tech support by pone, their rep, Aaron, immediately suspected a corruption in my CS 8 install caused by the Win 10 upgrade
he talked me through the steps to fix, and we had a resolution in about 10 minutes
Camtasia is really a great screencasting tool; maybe give it another shot?
though - why is Camtasia still 32 bit??