Coming from this post about parenthetical name / layer label in response to @Dan C .
In a chain of linked text frames a change to text style or frame property of any frame can affect a very different frame of this chain. For instance a centred vertical alignment gets visually set to top align even though the UI reports no change (still centred).
Also APub's behaviour when duplicating / copying a frame of a chain feels buggy: (1:20 min)
Different than expected it does not copy the certain frame with its specific content but creates instead a copy of the frame (incl. frame properties) but with the text of the first frame in the chain (incl. that text style). – This appears wrong additionally because of the different behaviour when the same frame of a chain gets converted to curves: then the frame maintains its contents as is while the text flow gets adjusted between the remaining frames accordingly.
text frames linked chain.m4v
This video also shows a conflict in the UI which results in a menu hidden by a floating panel (while the invisible menu still works through the panel which is covering it). A related report was logged for v193 by @MEB as afd-5444 in https://forum.affinity.serif.com/index.php?/topic/143549-v193-context-toolbar-extended-options-covered-by-panels/