Hey,

I have been using Magix for many, many years now, (since 2007)

And it has always been all I need for my editing.
But I am so done currently with Pro X.

I work in the video game industry as a cinematic artist, meaning most I do is all done in engine and some effects are done in post. This way I am pushing myself to make it look even better in the source files then rather trying to add all good looking things outside.

Previously proxy generation worked all fine, but since the last update on Pro X I'm running constantly into bottlenecks when it comes to other aspect ratios on source materials besides 16:9 .
I am using most of the times the Lagarith lossless coded, pretty neat codec for as the name says lossless compression.

I am running a well suited system with a AMD Ryzen 5 5600X, 32gb 3600 ram and a RTX 3070. Running these clips in realtime is not an option, it stutters heavily.

Lets talk about the proxies.
The system on how proxies are generated is absurd.
It triggers the generation on a 1920x1080 16:9 clip, but NOT on a 3840x1646 cinemascope clip.
One simple question. WHY? It suddenly does again on 3840x2160 resolution.
Same codec, same scene, same frame rate. Yet Magix refuses to generate a proxy file.

That is number one of three things I want to talk about.
The other topics are updating proxies and export.

First export, because updating is building upon that.

Why the heck is magix using the proxies for its export? Who thought, "yeah we gonna make it so it uses the low res, low fps files for the exported video"? It just doesn't make any sense. Everytime I want to export the final video I have to go to the folder of each source clip and delete them so it doesnt use those.

Then, we have the updating. Lets say you have a mix of clips in your timeline. Some are MP4 with suitable specs and dont need proxies, some are avi with heavy codecs and need them.
So, you have just delete the proxy files for a full export, but you need to change something, oke lets regenerate them, go to the project settings, let it look through the video, it finds that you can create proxie files. Good.
You click ok and woosh, "No proxie files needed for this clip, skipped" probably one of the mp4 clips, no deal, but no it cancels the whole process and doesnt just skip the file that doesnt need a proxy.

So in the end its not even possible to regenerate proxies easily with just reopening the project settings if your project has files in it that dont need them.

This is overall the worst thing that has happened to me using Pro X for all the time and I hope that the system gets a rework at least on the next version (X14).