R C-R

Interestingly, while a 'marching ants' selection is independent of any layer or pixels in the document (because you can make one & save the document without adding any layers), the above procedure does not work unless there is a pixel layer, even if it is empty, because in that case the Arrange menu flip & rotate items are greyed out.

Again, what kind of layer is this photo in? Are the text & photo in different layers or what? Please remember we cannot see what you do so we do not know how the file is constructed.

What specifically do you mean by a "selection," a 'marching ants' pixel selection, an object layer, something else? Which Affinity app are you using? By "horizontal flip" do you mean flip left to right or just some rotation other than 90°?

Also, what specifically is "the app" you are asking about?

That is not true. One of the major concepts for the native file format is documents do not need to be completely loaded into memory at the same time. (This is part of the reason that it is not advisable to open files directly from cloud storage or any other source that cannot be guaranteed to continuously available, the #1 cause of file corruption.)

When you say "image" what are you referring to specifically? A placed or pasted Image layer, a Pixel layer, a text object, something else?

Just curious but did the printer explain how the larger(?) file size did that (or what exactly was meant by "bottlenecking")?

Does this have anything to do with any of the three Affinity apps (Designer, Photo, & Publisher)? If not, you are posting to the wrong support forum because this is only for them.

Just guessing but check the Width, Opacity, Flow, Hardness, etc. settings of the Context Toolbar with the Clone Brush Tool selected. Also, it looks like you have the Stabilizer enabled. Do you want to use that?

What are the version numbers of the retail & beta apps you are using? FWIW, on my Mac running the latest 2.6.2 (3187) AD build, your Barbi's Styles 3 4.afstyles imports in less than 1 second, far quicker than in the 2.6.0 retail version.

I just added a post to the other topic with a workaround for 2.6.

FWIW, the bug affects the Mac versions, too. As a clumsy temporary workaround, you can first copy the file name in Explorer or Finder to the clipboard, & then paste it into the layer name after it blanks out.

From what you show, I think @markw is right -- you are trying to use Import Assets for this, which only works with *.afassets files (which are collections of assets which can be created via the Export Assets in the same menu). To import individual files like PNG's, you need to do that like I mentioned above, by opening the file, selecting it, & using the Add from Selection item in one of you asset subcategories.

Right click on the Master (or document) page in the Pages panel & select "Spread Properties..." The second tab in the window that opens is Dimensions.

Do you have a new or saved document open? Is the Grid And Axis... menu item greyed out? Are you in the Designer or Pixel persona?

There is no bug. It is just a consequence of there being two different installer types, a sandboxed one recommended by Microsoft plus an 'old school' one for users that need it so it can work with apps that have not been updated to work with the new, more secure version.

Have you opened the PNG file in your (which?) Affinity app? Did you select it with the Move tool? If so, in whatever asset sub-category you want to add it to, if you click on the 3 line 'burger' menu next to that subcategory, "Add from Selection" should not be greyed out. If it is, can you provide a screenshot showing the selected item & what the menu shows?

Well, all I can tell you about that behavior is it not happening on my Mac. I don't know why it is different for you. Sorry. As long as I drag tabs left or right & not out of the line of tabs, no new window appears. Again I do not know why it behaves differently for you.

I believe you, but maybe I do not understand what you mean. Are you saying for instance that if you have arranged 3 document tabs in a particular order & then open one or more others, the ones you previously arranged change to a new tab order?

I am not seeing that.

According to Serif the MSIX version offers a much higher success rate & is more secure since it runs in its own sandbox, but the downside is there are still a lot of Windows apps that cannot access those versions because they are sandboxed (so no 'edit in' options are available in those other apps, at least without additional user effort). Thus, the old-style MSI installer is still offered for those that need it.

IIRC, the problem with getting this to work is files open as soon as they are available, & in that order. So to avoid the app hanging up if one or more files are slow loading, or will not load at all, the reordering would have to be done after that finished. And of course, another complication is some want to be able to have them ordered by name, others by date (created or last modified), & so on. Plus, there is no guarantee that all of them would coming from the same folder, so it is less trivial to implement than it might appear.

FWIW, with or without a non-zero feather setting, for me the Elliptical Marquee Tool never creates a jagged edge 'marching ants' selection like shown in the post above by @mkpatrick6709.

And with what app.

I think it is a safe bet that this is the cause of the crashes. It is most likely because AP relies on some thing(s) that your old iMac's hardware does not support & no OS patch can get around that. Your only hope might be to try disabling Hardware Acceleration via a CTRL-start but I doubt that would really solve all the problems you would have even if it did run.