Unexpected cache flush on Magento2

Hello ! I’ve just seen that some cache flushed happened sometimes without any valuable explanation. For exemple, I can see the following info in the cache flush log and I cannot understand what happened . Any clue ?

Tags: BACKEND_MAINMENU

Source: Admin Magento

Mode: matchingAnyTag

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Backtrace :

AmastyFpcModelFlushesLogFlushesLogProvider->getFlushesLogModel()
AmastyFpcLoggerFlushesCache->clean()
MagentoFrameworkCacheFrontendDecoratorBare->clean()
MagentoFrameworkCacheFrontendDecoratorLogger->clean()
MagentoFrameworkAppCache->clean()
MagentoFrameworkAppCacheProxy->clean()
MagentoBackendModelUrl->renewSecretUrls()
MagentoBackendModelUrlInterfaceProxy->renewSecretUrls()
MagentoBackendModelAuthSession->processLogin()
MagentoBackendModelAuth->login()
MagentoBackendModelAuthInterceptor->___callParent()
MagentoBackendModelAuthInterceptor->MagentoFrameworkInterception{closure}()
MagentoBackendModelAuthInterceptor->___callPlugins()
MagentoBackendModelAuthInterceptor->login()
MagentoBackendAppActionPluginAuthentication->_performLogin()
MagentoBackendAppActionPluginAuthentication->_processNotLoggedInUser()
MagentoBackendAppActionPluginAuthentication->aroundDispatch()
MagentoBackendControllerAdminhtmlIndexIndexInterceptor->MagentoFrameworkInterception{closure}()
MagentoBackendControllerAdminhtmlIndexIndexInterceptor->___callPlugins()
MagentoBackendControllerAdminhtmlIndexIndexInterceptor->dispatch()
MagentoFrameworkAppFrontController->processRequest()
MagentoFrameworkAppFrontController->dispatch()
MagentoFrameworkAppFrontControllerInterceptor->___callParent()
MagentoFrameworkAppFrontControllerInterceptor->MagentoFrameworkInterception{closure}()
MagentoFrameworkAppFrontControllerInterceptor->___callPlugins()
MagentoFrameworkAppFrontControllerInterceptor->dispatch()
MagentoFrameworkAppHttp->launch()
MagentoFrameworkAppHttpInterceptor->___callParent()
MagentoFrameworkAppHttpInterceptor->MagentoFrameworkInterception{closure}()
MagentoFrameworkAppHttpInterceptor->___callPlugins()
MagentoFrameworkAppHttpInterceptor->launch()
MagentoFrameworkAppBootstrap->run()

​

Thanks for now 🙂