\sigma appearing in composite character (out of nowhere)
19293
Why do arguments to nested \tilde or \breve commands reappear when amsmath is used?
68061
I get these weird characters when I try to print out a vector element!
156069
Several unicode characters are not displaying on many big sites (like this: ⁠)
146115
Font corruption: lines through characters
119959
Why is my ASCII art all wonky?
44337
Symbol with overline and subscript leads to wrong kerning
156534
Tokens causing incorrect text substitutions
111684
Letter "c" appearing inside pmatrix environment with aastex
29294
Strange character when using listings package
131854
How to fix a single character typo in a code sample?
105961
doubled letter when I using \bm
144075
Why does typeid.name() return weird characters using GCC and how to make it print unmangled names?
148754
Where has my `uniq` or `sort -u` line gone, with some unicode characters
69723
Occasionally, the Unicode character sequence U+200C U+200B (ZWNJ ZWSP) is inserted into comments
152647
strange character encoding of stored data , old script is showing them fine new one doesn't
131830
When I add a "hat" to a character, I cannot get a gap before the superscript
43222
Error: extra alignment tab has been changed to \cr