Hi

Getting below when try to add HTML block, block editor does not appear, when try again it appears but is not editable.

VM3084:1 Uncaught TypeError: Cannot set property 'display' of undefined

Please advise

at a.setVisible (eval at <anonymous> (jquery.js?ccm_nocache=ca17add95b11d1baf3d74fcd3fa4637fb02c14ba:2), <anonymous>:1:286004)
at a.u (eval at <anonymous> (jquery.js?ccm_nocache=ca17add95b11d1baf3d74fcd3fa4637fb02c14ba:2), <anonymous>:1:285765)
at new a (eval at <anonymous> (jquery.js?ccm_nocache=ca17add95b11d1baf3d74fcd3fa4637fb02c14ba:2), <anonymous>:1:286077)
at new g (eval at <anonymous> (jquery.js?ccm_nocache=ca17add95b11d1baf3d74fcd3fa4637fb02c14ba:2), <anonymous>:1:239677)
at Object.t.edit (eval at <anonymous> (jquery.js?ccm_nocache=ca17add95b11d1baf3d74fcd3fa4637fb02c14ba:2), <anonymous>:1:2614)
at HTMLDocument.eval (eval at <anonymous> (jquery.js?ccm_nocache=ca17add95b11d1baf3d74fcd3fa4637fb02c14ba:2), <anonymous>:3:26)
at i (jquery.js?ccm_nocache=ca17add95b11d1baf3d74fcd3fa4637fb02c14ba:2)
at Object.add [as done] (jquery.js?ccm_nocache=ca17add95b11d1baf3d74fcd3fa4637fb02c14ba:2)
at n.fn.init.n.fn.ready (jquery.js?ccm_nocache=ca17add95b11d1baf3d74fcd3fa4637fb02c14ba:2)
at new n.fn.init (jquery.js?ccm_nocache=ca17add95b11d1baf3d74fcd3fa4637fb02c14ba:2)



Environment
# concrete5 Version
Core Version - 8.5.1
Version Installed - 8.5.1
Database Version - 20190301133300

# concrete5 Packages
Stucco (2.1.6), Supermint Theme (3.4.1.3)

# concrete5 Overrides
None

# concrete5 Cache Settings
Block Cache - On
Overrides Cache - On
Full Page Caching - Off
Full Page Cache Lifetime - Every 6 hours (default setting).

# Server Software
Apache

# Server API
cgi-fcgi

# PHP Version
7.1.31

# PHP Extensions
bcmath, bz2, calendar, cgi-fcgi, Core, ctype, curl, date, dba, dom, enchant, exif, fileinfo, filter, ftp, gd, gettext, gmp, hash, iconv, imap, intl, ionCube Loader, json, ldap, libxml, mbstring, mcrypt, memcached, mysqli, mysqlnd, openssl, pcntl, pcre, PDO, pdo_mysql, pdo_pgsql, pdo_sqlite, pgsql, Phar, posix, pspell, readline, Reflection, session, shmop, SimpleXML, soap, sockets, SPL, sqlite3, standard, sysvmsg, sysvsem, tidy, tokenizer, wddx, xml, xmlreader, xmlrpc, xmlwriter, xsl, Zend OPcache, zip, zlib

# PHP Settings
max_execution_time - 120
log_errors_max_len - 1024
max_file_uploads - 20
max_input_nesting_level - 64
max_input_time - 120
max_input_vars - 3000
memory_limit - 768M
post_max_size - 128M
sql.safe_mode - Off
upload_max_filesize - 128M
ldap.max_links - Unlimited
memcached.sess_lock_max_wait - not set
memcached.sess_lock_wait_max - 2000
memcached.sess_server_failure_limit - 0
mysqli.max_links - 60
mysqli.max_persistent - Unlimited
pcre.backtrack_limit - 1000000
pcre.recursion_limit - 100000
pgsql.max_links - 60
pgsql.max_persistent - Unlimited
session.cache_limiter - <i>no value</i>
session.gc_maxlifetime - 7200
soap.wsdl_cache_limit - 5
opcache.max_accelerated_files - 10000
opcache.max_file_size - 0
opcache.max_wasted_percentage - 5