When having problems with peak files, it is sometimes necessary to delete all peak files. Every time I reopen my project, I find that Premiere Pro makes a big mistake when re-rendering the Peak files. Namely, the peak files are (apparently) rendered without any sort of priorities being set. This can sometimes lead to very long hold times while waiting for the peak files of the clips in the timeline to be rendered.
In my experience and opinion the peak files of the files in the timeline should ALWAYS be prioritized. In general, peak file generation should be "dynamic" and always prioritize the clips that are currently in demand (for example, when I bring up a clip in the source monitor, the corresponding clip should move to the next possible position in the render queue).
I believe that the usability could be significantly improved by the proposed changes.