new features to the Blogger platform don't worry

Blogger is continually adding new features to the Blogger platform. Some features, which are specific to individual posts, don't always work as well as they should - or in some cases, don't work at all. Other features may stop working, after the blog is changed to use a third party template, or after the template code is tweaked using "Edit HTML".
In many cases, failure of a post related feature to work consistently, or at all, is caused by the lack of supporting code in the post template. Generally, when someone reports such a problem in BHF: Something Is Broken, the advice to refresh the gadgets, or the post template, will be given. Some forum helpers may grow to see the advice, given as

From Design - "Edit HTML", select "Revert widget templates to default".

as a magic wand, to be waved over any blog with a problem.

There is no magic in the post or widget templates, and many problems with the posts can be resolved in several different ways. Each different resolution will differ in how much technical expertise may be required, contrasting with how much incidental damage that it can do, to your blog and its current settings.

• Revert the widget templates.
• Reset the post template.
• Add or tweak specific template code.

Reverting the widget templates is the simplest solution to apply, as almost every helper knows how to advise "Revert widget templates to default". This solution may have the widest incidental damage, however. "Blog Posts" is just one gadget on the "Post Elements" screen - but when you select "Revert widget templates to default", you are resetting each gadget to default settings.

Reloading the post template may be best for problems which are specific to the individual posts. This solution requires a small amount of comfort with editing the template HTML. When this solution works, it will affect only settings and tweaks previously made to "Blog Posts" / the post template.

For blogs which have been extensively customised using "Edit HTML" with "Expand Widget Templates" selected, specific code snippets may be provided, to be inserted into the post template.

The latter technique, recommended when "Jump Break" does not work for some blogs, is technically complex - yet if executed properly, will have far less side effects then the previous two solutions. If executed improperly, however, it may cause template corruption - and may necessitate the later advice to "Revert widget templates to default".

Pick your solution intelligently, based upon how widespread the problem may be, how deeply into "Edit HTML" you are willing to go, and how many incidental changes you are willing to deal with afterwards.