Just with some recent changes (either in KDE-PIM sources or Qt 5.10) akregator very often crashes e.g. on closing a tab.
That was not the case just a week or 2 ago, but now it's happening so often that akregator is barely usable.
I assume it has to do with webengine, since I also encounter often crashes in kmail since.

BT:
#0  0x00007f3684cfbded in QtWebEngineCore::NetworkDelegateQt::OnBeforeURLRequest(net::URLRequest*, base::Callback<void (int), (base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&, GURL*) () from /usr/lib64/libQt5WebEngineCore.so.5
#1  0x00007f36864bb772 in net::NetworkDelegate::NotifyBeforeURLRequest(net::URLRequest*, base::Callback<void (int), (base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&, GURL*) () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f36865c8f5b in net::URLRequest::Start () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f36853e1f11 in content::ResourceLoader::StartRequestInternal () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f36853e29f5 in content::ResourceLoader::Resume () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f36853c1b4a in content::AsyncResourceHandler::OnWillStart () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f36853c4ea2 in content::LayeredResourceHandler::OnWillStart () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f36853eb501 in content::ThrottlingResourceHandler::OnWillStart () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f36853eb1b1 in content::ThrottlingResourceHandler::ResumeStart () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f36853c98fa in base::internal::Invoker<base::internal::BindState<base::Callback<void (content::NavigationThrottle::ThrottleCheckResult), (base::internal::CopyMode)1, (base::internal::RepeatMode)1>, content::NavigationThrottle::ThrottleCheckResult>, void ()>::Run(base::internal::BindStateBase*) () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f3685f67fd1 in base::debug::TaskAnnotator::RunTask () from /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f3685f02cb0 in base::MessageLoop::RunTask () from /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007f3685f044ce in base::MessageLoop::DeferOrRunPendingTask () from /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007f3685f054a9 in DoWork () from /usr/lib64/libQt5WebEngineCore.so.5
#14 0x00007f3685f05a50 in base::MessagePumpLibevent::Run () from /usr/lib64/libQt5WebEngineCore.so.5
#15 0x00007f3685f22068 in base::RunLoop::Run () from /usr/lib64/libQt5WebEngineCore.so.5
#16 0x00007f368521c465 in content::BrowserThreadImpl::IOThreadRun () from /usr/lib64/libQt5WebEngineCore.so.5
#17 0x00007f368521c89b in content::BrowserThreadImpl::Run () from /usr/lib64/libQt5WebEngineCore.so.5
#18 0x00007f3685f3cf16 in base::Thread::ThreadMain () from /usr/lib64/libQt5WebEngineCore.so.5
#19 0x00007f3685f3827d in ThreadFunc () from /usr/lib64/libQt5WebEngineCore.so.5
#20 0x00007f3680e4c724 in start_thread () from /lib64/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
#21 0x00007f368c758e8d in clone () from /lib64/libc.so.6