Hovering over class declaration causes hang

When hovering over a "complicated" class definition (i.e. has Q_PROPERTY's, signals, slots, documentation) QtC appears to hang whilst generating the tooltip. Does not occur for simpler class definitions. I haven't tried for other types of tooltips

Attached is an example minimal project:

• Hovering over ExampleSmallClass does not cause a hang
• Hovering over ExampleLargeClass does cause a hang

Occurs when closing/reopening the project consistently, and happens sporadically whilst the project is open. Seen in last version of QtC (11) as well. I reported a similar issue related to hovering over embedded string literal image links a few months ago (https://bugreports.qt.io/browse/QTCREATORBUG-29217)

Please let me know if you need anymore information.