OK quick update.
Just downgraded the SW back to 11.2.5 and everything is back to working normal again.
So it's definitely a bug in SW 11.2.7 and 11.2.8.
I just upgraded over the weekend as well and am having the same issue.
I contacted Tazer over the weekend and heard back from them on Monday. This is not normal expected performance. Their exact words were "It shouldn't do that". They advised me to unmarry the Tazer, doa full reboot...
It is not a BETA release. There are no BETA versions available right now for Tazer JL. 11.2.7 is the latest full release version available on the website.