I have a couple of While True / Wend loops and this produces the warning "Condition is always true". Initially the warning markers showed correctly on the first line of those blocks, but as I edited the file, they didn't remain associated with those lines. Rerunning Analyser will still report the error on the correct lines but the marker remains several lines off. IIRC the Analyser pane reported the correct current lines before I reran it to try to get the marker corrected.
I would expect Analyser to update the markers when I run it, no? Of course it shouldn't have to in this case, the base problem is the marker didn't stick with its associated line of code.