I frequently encounter the problem, that Toad suddenly encounters an error when using the Code Template feature. I am working as usual (i.e. executing SQLs, programming some stuff in packages, ...) and suddently creating a code template in the editor (e.g. ifte -> IF THEN ELSE statement) throws an error.
The stacktrace from the details:
There are several workarounds to this issue (like opening a new editor and then doing a code template there), but it's still annoying.