Welcome to the forum
You started two different threads on the glitches you are having with your device & I have popped them together here & added detail to the thread title for you. No need for two threads - we can cover everything here.
It sounds to me as if you are experiencing the sort of gremlin that occurs on a device when it has had several firmware & OS updates. It is quite common in those circumstances for this sort of weirdness to occur.
I suggest the following (do it all with the dock connected if you have it)...
1) Connect your TF to the charger & then power it off
2) Leave it to charge overnight
3) Cold boot (see link in signature) to power it on
4) Backup your files, photos, app data etc etc & then Factory Reset your device. There is a step by step guide on how to do this linked from the Master Help Guide (link in signature) if you would find it helpful.
Once you have Factory Reset & restored all your apps & backups, allow your device to use its battery/ies down to around 15% (but no lower than 10%). Then connect to the charger, power off & then allow the device a full, 8 hour minimum charge.
I feel confidant that the process I have outlined should get your device back to normal for you.
All the best & let us know how you get on.