How do I get TYPO3 custom extension route to work? - typo3

Question

Perhaps am missing something. I've searched and found answers such as this. For me, the whole thing doesn't work.
So my pages load via TypoScript (as one might expect):
# PAGE
# **********************
page=PAGE
page{
typeNum=0
shortcutIcon=favicon.ico
10=USER
10{
userFunc=TYPO3\CMS\Extbase\Core\Bootstrap->run
extensionName=Shop
pluginName=Main
}
}
I have a couple of pages (1 and 2) and they all work fine. Page 1 is root page.
Then I have routes that look like this:
routeEnhancers:
Account:
type: Extbase
limitToPages:
- 1
extension: Shop
plugin: Account
routes:
- routePath: /a
_controller: 'Account::accountLogin'
- routePath: /a/r
_controller: 'Account::accountRegistration'
My plugin registration in ext_localconf.php looks like this:
/**
* Plugins
*/
(static function(){
ExtensionUtility::configurePlugin('shop', 'Page', [PageController::class=>'main']);
ExtensionUtility::configurePlugin('shop', 'Account', [AccountController::class=>'accountLogin,accountRegistration']);
})();
When I try to access the root page https://127.0.0.1/ it works fine. When I access a subpage (page 2) of page 1, everything works fine as well. But when I try to access https://127.0.0.1/a, the request never hits the accountLogin action of the AccountController. Neither does https://127.0.0.1/a/r. So I checked under the hood and found that The PageResolver middleware does indeed single out the correct routePath from the list of available paths. The controller and action of the route is then carried in a PageArguments object. All looks good but it never gets to the accountLogin action. It's totally ignored in the process.
Previously with earlier versions it worked fine.
What could I be doing wrong? or did some change take place with the new version?
Using version 11.5.8

Answer 1

Apparently the TypoScript carrying the plugin for the AccountController was not loaded.