@Paweld, thanks! I've attached a simple test project (Project1.zip). It's got a form with Memo1 and SynEdit1 on it. The Consolas font's used everywhere. I've entered two lines of text, a ∈ A and b ∉ A, and they display fine in the Memo1 field, but not in SynEdit1 or the IDE Lazarus source editor (2024-09-10 174645.png). What am I missing here?
Best regard, LV
Updated: Thanks/Podziękowanie again to Paweld, the problem is sorted!