Never seen this happen and all I own are FireTV devices ...
I'm mainly watching my virtual channels. Thats a great question, maybe thats correlated. I am convinced its my channels app thats causing this issue. Since the solution is to force stop it. Netflix plays fine again after you do that. Youtube, Plex, etc.
Others are chiming in that they do not have this issue, but perhaps its becasue I soley use it for virtual channels. Maybe the virtual channels is the main common denominator. I am not low on Fire TV space either. I download the usual suspects and that is it. I always have about 2 to 3gb left from 8gb devices.
That's not it. I have plenty of space. Im starting to suspect virtual channels.
I really wish you guys could give it a rest about solving every FireTV problem by replacing it with AppleTV. I don't rundown AppleTV just because you can't connect multiple Apple remotes to one device. Besides I can press one button on my Pro Remote and it brings up all my Apps on one screen, not one advertisement in sight. I can live with that.
Yup.
Hey, my prescription sunglasses work for me, but maybe not for you.
Not every problem, but ones that relate to overall memory management, cache and app storage are 100% relevant in that context.
Yep...I relegated mine to an hdmi tuner input for a reason
One thing in common for all of these streaming devices is the manufacturers always skimp on ram. To me, this is most of the problem.
And the developers don't take this into account. And/or the OS does not properly page out inactive applications. The latter seems to be the case for this Fire TV issue as closing channels clears the issue. I bet closing a different app(s) would provide a similar satisfying result.
Apple TV only has 4gigs of ram and it doesn’t produce the amount of headaches that is constantly discussed here with other devices. It’s not the ram, it’s shitty OS that prioritizes ads and data mining.
Now, it’s possible that this place can’t code or port to Android as well as iOS or Apple TV, but I’m not sure if that’s the case, it could be. And who knows how shitty those low end cpus affect things 
Apple TV's OS is a fork of OS X which is in tern a fork of Unix.
Google TV is an skin (User Interface) placed on top of Android, also a fork of Unix
Fire TV is a skin placed on top of Android with Amazon modifications, also a fork of Unix
Apple products are designed to make you need other Apple products. Many people hate the huge sucking sound while others love it.
The vast majority of issues you see discussed here are related to oper source addons
And don't forget that most every Apple OS release causes some people greef and this is not as common for Android devices though it also happens.
So run what you enjoy yet realize that there are plenty of perfectly good solutions that are neither better or worse, just different.
4gigs is the high end of streaming devices last time I looked. Hoping things changed in the last year or 2.
My Shield Pro only has 3, and the Tube versions only have 2gig as I recall. Seems like 6-8 should be minimum with cheap ram these days.
Yeah...my onn tv box is only 3. Should probably be double that at least IMO
We can debate all we want about Apple TV and memory problems with Android/FireTV devices. But since several of us actual FIreTV users have said the original problem doesn't happen on our devices so maybe we can find another solution without an expensive Apple TV replacement.
I add extra storage memory to all my FireTV devices, just so I have lots of storage memory for Channels DVR. For my first gen Firestick Max devices I have used Samsung Fit 128GB USB memory and simple USB patch cables. But this solution did not work for second gen Firestick Max devices. I needed to find memory that could write faster. I found two memory devices that have been working well for almost a year: Sandisk 128GB Extreme Pro and Vansuny 128GB USB memory. The Sandisk memory was expensive and it did not work with the simple USB patch cable. I had to use a device with 3 USB and a network connection. This total solution ended up costing more than I would recommend and may not really be necessary since the second gen Firestick Max has extra storage memory built in.
At any rate not sure if this is the reason I am not seeing to original problem. The only app I have sideloaded is the Channels DVR beta, otherwise I am completely original software.
This is all nonsense about what is better ... you use whatever works for you ... be it budget wise or ecosystem.
So guys, two things...
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This isn't relegated to just the fire tv afterall. I just found out using my brand new google tv streamer, the higher end $99 model. My youtube didn't start properly, it did the pausing thing. I forced stopped Channels DVR, and youtube worked again.
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Since this issue seems to be foreign to other users here, then I'm convinced it's the virtual channels. That's all I ever use channels dvr for.
Are you doing a force stop only, or cache clear also?
Does it show before and after cache size?
I always clear cache just in case, but since you asked... I tried today without clearing cache, I only forced stop and it works. This is for the new google streamer. I will test with fire tv later.
Does this have to do with the channels dvr locking up or reserving the buffer or something?
When you are going to play Netflix or another app, is Channels currently streaming something when you hit Home or do you exit out of the Channels player first before hitting Home?
Never thought of it to be honest. I think most of the time, I just hit the home button, or keep hitting back button. But what does "exiting" entail? How do you exit properly?