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We have a wordpress wise, which has some strange JS errors going on in the datepicker and calendar, if you click on the date it just disappears and click on any even in the calendar and the entry disappears, the errors jquery-migrate.js?ver=3.3.2:100 JQMIGRATE: jQuery.fn.change() event shorthand is deprecated migrateWarn @ jquery-migrate.js?ver=3.3.2:100 jquery-migrate.js?ver=3.3.2:100 JQMIGRATE: jQuery.fn.click() event shorthand is deprecated migrateWarn @ jquery-migrate.js?ver=3.3.2:100 jquery-migrate.js?ver=3.3.2:100 JQMIGRATE: jQuery.fn.mousedown() event shorthand is deprecated migrateWarn @ jquery-migrate.js?ver=3.3.2:100 jquery-migrate.js?ver=3.3.2:100 JQMIGRATE: jQuery.fn.submit() event shorthand is deprecated migrateWarn @ jquery-migrate.js?ver=3.3.2:100 jquery-migrate.js?ver=3.3.2:100 JQMIGRATE: jQuery.fn.bind() is deprecated migrateWarn @ jquery-migrate.js?ver=3.3.2:100 DevTools failed to load source map: Could not load content for /wp-includes/js/dist/index.module.js.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE react-dom.js?ver=17.0.1:11370 Uncaught RangeError: Invalid time value at format (components.js?ver=2415973c4227a31b8a15:50459:11) at components.js?ver=2415973c4227a31b8a15:51614:10 at mountMemo (react-dom.js?ver=17.0.1:15876:21) at Object.useMemo (react-dom.js?ver=17.0.1:16249:18) at useMemo (react.js?ver=17.0.1:1557:23) at TimePicker (components.js?ver=2415973c4227a31b8a15:51613:54) at renderWithHooks (react-dom.js?ver=17.0.1:15015:20) at mountIndeterminateComponent (react-dom.js?ver=17.0.1:17841:15) at beginWork (react-dom.js?ver=17.0.1:19079:18) at HTMLUnknownElement.callCallback (react-dom.js?ver=17.0.1:3942:16) It appears to relate to a file /wp-includes/js/dist/components.js