I am having this issue as well on iOS, typically (at least when I notice it) when I share content to my Dynalist inbox. The latest incident happened in the last couple days.
The shared item is not visible in browser, or in the Dynalist desktop (Windows) app, and both those services and the iOS app display they are Synced. If I change the contents of the bullet point, or add a note the item still wonāt show up outside of iOS.
The only workaround I have seen is if I indent the newest items so it is the child of the bullet point above it (I have items added to the bottom of my inbox).
Hope this can be resolved sometime soon.