Titles of Fusion Nodes Red & Flashing When Playing Back

I'm familiar with Resolve, but really new to the Fusion page, so please forgive me if I describe this issue badly.

I'm trying to do the most basic motion graphics animation in Fusion. Literally just two bars that move to reveal one line of text from behind a mask. No motion blur applied yet, REALLY nothing insane. I only have like thirteen nodes I'm working with at this point.

As soon as I start trying to animate the bars and the text with keyframes, the titles transform nodes I'm using to move the elements turn red and start flashing whenever I try to playback. I can't get the MediaOut node to show up in either viewer. The viewers just stay greyed out. When I click on the warning triangle, I'm getting warns about "parameters".

Super confused because my PC really should be able to handle something like this basic. I have nothing else open on my PC when I'm working in Fusion. My PC is running a GeForce GTX 1080 overclocked 8GB GDDR5X card, an Intel Core i7 8700K overclocked 4.8GHz per core processor and 32GB of DDR4 2666Mhz high performance gaming RAM.

Just curious if anyone else has had any issues like this with either of the latest two Resolve updates? I've also experienced issues with playback and rendering relatively simple grades since two updates ago. Is this a Resolve problem? Or is my PC dying on me?

Any help would be greatly appreciated, thanks all!

It'll be easier to try and diagnose if you can share your composition.

That's easy to do: select all the nodes in the node flow, and copy them (either right-click and Copy, or hit Control-C on Win/Linux, Cmd-C on macOS)

That will put a large amount of text on your clipboard, which is code that represents the nodes. Now you can paste that here. You can paste that directly on here on the forum. In your reply, click the Code button above the the reply window. That will give you two code tags, then just paste the copied text between them.

In addition, ideally can you share a screenshot showing Fusion at a time when the issue is happening.

Usually when you get a warning about some node can't get a value for a parameter, it means that something upstream of that node isn't passing along an image, or there's a broken expression. Verify that whatever media you're feeding into those Transforms exists at all frames where you're doing your animation. If it's just a still image or something, Resolve might have given it a default duration that is too short, or something of that sort. If that's the case, try adding a TimeStretcher right after the MediaIn, and make sure the value for Source Time is a frame where data exists. That will essentially copy that data to all frames, so it will be valid all the time.