Editing Forum:Template problem

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There seems to a problem with [[Template:InfoboxSubsectorSimple]]. If you look at the Special Page '''Wanted Templates''', the top one on the list is [[Template:Alg]], if you look at the list of pages asking for it, they all seem to be pages using the [[Template:InfoboxSubsectorSimple]]. All the pages have an extra '}' at the beginning of the page, which suggests something broken in the Template. 

[[Template:InfoboxSubsector]] doesn't seem to have the problem, as most subsector pages look OK.

I don't know enough about how the templates work to pin it down exactly, but there is one possibly suspect difference between the [[Template:InfoboxSubsectorSimple]] and [[Template:InfoboxSubsector]]. The first one says that the 'alg' code defines the colour of the bar and does something about categories. The second one only refers to the colour of the bar. I wonder if that points to where in the template definition the problem is?  [[Special:Contributions/212.219.243.126|212.219.243.126]] 07:02, 18 June 2015 (EDT)

:: Yes, the problem was the category generation at the bottom of the template based upon the Alg parameter was missing a bracket "{". Using a template requires two brackets (like this: "{{" and "}}"). Using a named parameter in a template requires three brackets (like this: "{{{" and "}}}"). So in one template, passing a parameter to another template (recursively) you end up with large sequences of brackets (like "}}}}}"). As you can imagine, it's easy to get this wrong. 
:: Part of the reason this was not fixed was we're deprecating the use of the [[Template:InfoboxSubsectorSimple]]. If you are editing a page where this template is used, please replace it with [[Template:InfoboxSubsector]]. 
:: [[User:Tjoneslo|Tjoneslo]] ([[User talk:Tjoneslo|talk]]) 08:47, 18 June 2015 (EDT)

: I have also noticed this problem. [[Template:InfoboxSubsector]] preference noted. Thanks, Thomas. [[User:Maksim-Smelchak|Maksim-Smelchak]] ([[User talk:Maksim-Smelchak|talk]]) 08:53, 18 June 2015 (EDT)