Are you running the latest version of Premiere? It's 12.1.2.
Just to clarify a couple things:
1) You're looking at a multi-clip in the Source monitor, which means if you want to see all angles you have to double-click it to properly open it in the Source monitor. If not, then you'll only see the frame that's under the CTI. It's possible that when you switch workspaces you just need to double-click your multi-clip again.
2) Are you editing using the Source monitor or the Multi-Camera view? I have a dedicated Multi-cam workspace that shrinks the Source monitor to the left as far as it will go and extends the Program monitor to the left. The icon on the bottom row of your Program monitor with the large square and four smaller squares will open the MC view as part of the Program monitor. This will always show all angles in the multi-clip that are under the CTI and it makes the most sense to use while editing. If you're just making adjustments to a few clips here and there then the Source monitor probably makes more sense to use.
You didn't provide any details about your workflow, so I'm just spit balling here. My first guess would be to try to double-click the clip again.
Yep - my Premiere is up-to-date.
And yes - I know that you have to double-click something to open it in the source monitor. Like I mentioned, the source monitor behaves normally for long periods of time, where I'm double-clicking Multicam sequences in the timeline, and they are properly displaying.
I am not using multi-camera view. As you can see in my screenshot, it is toggled off. I prefer to edit by selecting my angle in the source monitor, then putting it into the timeline. If I ever want to change angles, I blade-tool the clip in the timeline, double-click it to open it in the source monitor (which is where the problem has been happening intermittently), then change the angle.
Obviously, I've tried double-clicking the clip a 2nd, 3rd, and 4th time before writing a forum post. I've also tried resetting the work-space, resizing the window, opening a different multicam sequence (which has the same issue).
I want to stress that I've been editing this way for a long time without any problems, and this really feels like some sort of glitch. Particularly because of the brief glimpse I get of the appropriate source monitor view, before it inexplicably disappears.
What details do you want about the workflow? The multicam sequences contain R3D files with attached proxies. This problem persists with proxies toggled on or off. Should I record a video of the issue?
I've found the following to be the most efficient for multicam edits.
1. Do the work in the Program Monitor, as designed. Run through the sequence in real time, making your cuts. Don't stop to correct errors.
2. Skim through sequence a second time using the Rolling Edit tool to tweak your cuts/change angles.
Thanks for the responses, guys.
I don't think my workflow is the issue here. The fact that Premiere becomes glitched - to the point where I can no longer accurately view ANY multicam sequences in the source monitor - is a problem.
You can't tell me that multicam sequences are never intended to be viewed in the source monitor. Otherwise the functionality wouldn't even exist. I've been using it for ages.
Also, there are plenty of legitimate situations where you don't want to cut in real time or use the rolling edit tool. Cutting in real time without stopping may be a good approach for certain projects, but it doesn't mean it's some ironclad rule.
Can you try the "standard" multicamera editing workflow and see if it works for you? Then, we can address the problems of your hybrid workflow, which isn't how most people work.
It sounds like you are working more with a workflow where you are editing a sequence of selects from the Source Monitor, which is different. More info on that here: Edit from Premiere Pro sequences loaded into the Source Monitor
After you try the workflow from the document, report back with questions.
I actually just realized (2 months later), that using the standard multi-cam workflow has the same problem. The multi-cam view in the program monitor shows only 1 angle, when there are actually 2. If I reboot Premiere, it fixes the glitch and the 2nd angle appears.
Here, you can see the program monitor and the source monitor both show that there is only 1 available angle. But there are definitely 2. There are multiple cuts on this timeline that use the closer angle. I can actually force it to switch by right-clicking on the clip in the timeline and going to multicamera > angle X.
Here, you can see the multicam sequence opened in the timeline. There are two angles. The blank track was a third angle we had running for the beginning of the interview.
Any ideas why this occurs? This is a big project file, so having to close and re-open it every 20 minutes is time consuming.