Embroiderme I’m running iOS 18 and I don’t have the menu.
iOS 18 wasn't affected by the issue at all - by default it does include the icons in question, so your problem might be related to something different. Can you confirm that the menu in the following image is missing on your device:

Maybe you are able to provide a screenshot like illustrated in this post.
Embroiderme I do not know how to manually perform the update on my iPad Pro.
An app update can be forced by using the App Store on your iPad and visit either StitchBuddy HD's product page or your account settings: Any pending update is listed and can be applied manually. But as mentioned: Even if StitchBuddy HD might be outdated on your device if you have disabled automatic updates (its current version is 3.4.4), the mentioned fix isn't necessary on your iOS version.
Greetings to Down-Under 😉
Edit: I've moved @Embroiderme 's problem into a separate discussion as it wasn't related to the "Clipboard icon issue"…