P: Morph cut - Analyzing in Background never completes

Premiere Pro 24.1 built-in transition Morph Cut seems to have stopped being usefull at all since it never finishes analysing in the background with my videos.

My workflow 1 - create a sequence with the settings below, import the footage, cut it, place the morph cut between the clips, colorgrade and use effects afterwards.

My workflow 2 - same except that I cut 2-3 seconds at the end of the first clip and 2-3 seconds at the beginning of the second and in between those secondary parts I place the morph cut transition. 

In both cases morph cut keeps analysing the material for eternity. It does sometimes work (rarely and I didn't catch the pattern) but most of the time it goes into this analysing phase and never finishes.

- nesting does not help

- rendering and replacing to some other format does not help

- flushing cache does not help

- changing the sequence settings does not help

- didn't check other video formats since my current client gives me only footage from one and the same camera

- MERCURY RENDERER immediatelly helps BUT makes it next to impossible to work further. Switching back to CUDA brings back the endless analysis. 

The footage I use:

Type: MPEG Movie
Image Size: 1920 x 1080
Frame Rate: 59,94
Source Audio Format: 48000 Hz - 16-bit - Stereo
Project Audio Format: 48000 Hz - 32 bit floating point - Stereo
Pixel Aspect Ratio: 1,0
Color Space: xvYCC709 (IEC61966_2_4)
Color Space Override: Off
Input LUT: None
Video Codec Type: MP4/MOV H.264 4:2:0

My PC:

Core-i7 13700 KF, RTX 4080, 64 Gb Ram, 7000\6000 speed SSD. Latest Win10 updates, latest drivers for all the PC parts. The current Nvidia driver is 546.65.

I REALLY need this transition to work since there is no alternative for Premiere pro and Morph cut is the only way to conceal cuts in a talking-head footage in a way noone will notice. Please, Adobe, the new audio workspace is a good thing but do not forget your old features.

I also found sometimes, it just takes really, really long. I left my workstation out of frustration and upon my return, the morph was done.
I don't understand why this seems unimportant. An excellent tool to make interview cuts less obvious.

HTH

If you apply morph cut only to one transition, wait to analyze, it does it's job, very very very slow (20-60 seconds on a mac m1), but it does it's job.

If you apply it to multiple clip at once, it will analyze the last one added and all the rest will remain at analyzing in background.

It will get stuck if you other things so the only way it works for me is one by one and wait for it to analyze.

The feature is broken and won't probably get any fixing since it's over a decade old. 

This is why people switch to resolve!

I literaly have it in 2024. 

They removed "master" from their lexicon for "modern" reasoning. It's now all "source", which if you think about it, in the use it gets, is more accurate.

Hi,

When I look for the "convert to master clip" tick box, there's one that says "convert to source clip", but I can't tick or untick it. Is there another way?
Thanks,

Josh 

OK, now it seems Morph cuts have stopped working altogether great. Now I have "anaysing in background" across all cuts that worked fine before the update and I can't deliver. Rolling back... 
Edit: this concerned certain clips that worked before. Switching multicam clip perspective, I got some new morphs to work.

Wow!

That's painful. Period. Been there done the screaming at the monitor ...

While most of us users don't have the issue, or if we do, it's like one build or build series, it's a HUGE hassle when you do. For example/data, I only had this problem with one specific build a couple versions back, Drove me NUTs it did ...

But not since. No clue why some get it, many don't. Wish I did!

Yet some users still get this ... just ... wowza. 

The only things I can suggest help some with this issue, but cetainly not all. And may be worth trying for those reading this thread if they haven't already ...

1) Use Morph on relatively 'short' clips, 10 seconds of sequence time or less. I personally try to stay under 5. Which means judiciously choosing what needs stabilization, just doing those bits. Cutting clips into multiple sections at times, maybe even resizing the in-between to match the Morphed clips to either side.

2) When you gotta do long bits, like handheld "reality" shots, get experience with Morph's controls, so you both a) allow some level of motion to pass through, and b) set the type of stabilization applied to the clips.

That second part is crucial for many users ... learning how to modify the settings in Morph to get adequate service, but still getting through the clip analyzation being finished.

And ... 

3) as soon as you have a clip or clips finished analyzing, immediately do a full Render & Replace on the sequence! That way further playback is 'simple' for the computer, and crucially, you don't risk Premere losing the analyzation data ... which it can and will eventually.

And as soon as I'd posted that my Morph cut refused to work. Yeah, in 2024

Still not working, at least sometimes. Would be great if we saw the reason for it NOT working. Just keeps analyzing. Nesting (they are nested multicam clips) some more just produces  something like "accessing clips not possible".

At least the horrible playback was fixed from yesterday's update to today's.