I'm on windows 11 home, 128 GB of ram, RTX 4090, recently cleared all of the caches. Every time I open the IPTC template PM is hanging for 20-30 seconds. BUT SOMETIMES IT DOESN'T - it will open instantly - maybe 20% of the time.
This happens almost all the time after performing a file system manipulation (like deleting or moving a file from within photomechanic), but now it's happening even after not manipulating files. It's also hanging on opening a preview window. The window and image will open instantly but it will be 20-30 seconds before I can scroll left or right to a different photo. In preferences I have the 3 preview related boxes all checked off (make current preview visible in contact sheet, sync single selection, rescan contact sheet). PM is acting like it's rescanning the contact sheet every time I open an IPTC template or preview window. The CPU AND GPU will both run at about 15% while PM is hanging and non responsive.
The duration of the hang lessens as I hide images in the gallery. Once I update IPTC info on some images I hide them by setting them to color class red and hitting refresh (with red hidden). The more I hide, the shorter the duration of the hang. It is not uncommon for me to have galleries of 20,000 - 30,000 images.
I've been using the same workflow for ~ 6 years and this hanging has started popping up in the last 6 months or so and has been getting worse. I'm on the latest version of PM 6 (not PM plus). The files are on a fast 2 TB M.2 drive and the cache is on an 8 GB Sata SSD. Neither drive is more than 75% full.
Build 6890. Oddly enough, it hung when opening the window for build info.
Again the hanging FEELS LIKE PM is doing something to every non-hidden image in the contact sheet on certain operations, but I have as many settings off as possible that have to do with background contact sheet stuff. I should also note this exact same issue started happening on my laptop around the same time. I don't use PM on my laptop nearly as much so I don't have as much info about it. I just noticed it popped up on my desktop and laptop after the same event I photographed. My desktop and laptop are not on the same build number currently.