In a previous blog post, we noted a compatibility issue: in macOS 10.14.4, some OmniOutliner and OmniPlan documents (large documents, generally) wouldn’t display.
We’re very happy to report that our testers have verified that macOS 10.14.5, released today, fixes that bug.
If you’re running 10.14.4, we strongly recommend that you upgrade.
Side note: Apple’s release notes actually say “Fixes an issue that prevented certain very large OmniOutliner and OmniPlan documents from rendering properly.” Their release notes don’t usually mention specific third-party apps! But this time it made sense.
Technical note, for the curious: OmniOutliner and OmniPlan use Core Animation layers, and the bug appears to have been related to very large numbers of layers. Now fixed!