Can't upload tif or tiff files

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form file uploads doesn't seem to allow tif or tiff files to be uploaded. Int he file manager allowed file types these are both added already. The error seems to come from the attempt to generate thumbnails. The file manager seems to also silently throw the error. The image seems to make it into the file manager but there is no thumbnail and the size says 0kb. Noticed someone else already had this issue in the forms but it doesn't seem to be resolved

Status: New

concrete5 Environment Information

# concrete5 Version
Core Version - 8.2.1
Version Installed - 8.2.1
Database Version - 20170802000000

# concrete5 Packages
Pixel Theme (1.2.0)

# concrete5 Overrides
blocks/external_form/edit.php, blocks/external_form/controller.php, blocks/external_form/form/controller/file_upload_form.php, blocks/external_form/form/controller, blocks/external_form/form/file_upload_form.php, blocks/external_form/form, blocks/external_form/db.xml, blocks/external_form/view.php, blocks/external_form/add.php, blocks/external_form/auto.js, blocks/external_form/icon.png, blocks/external_form, controllers/single_page, elements/pdf.php, mail/block_express_form_submission.php, src/File/Type/Inspector/PdfInspector.php, src/File/Type/Inspector, src/File/Type, src/File

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

# Server Software

# Server API

# PHP Version

# PHP Extensions
apache2handler, bcmath, bz2, calendar, Core, ctype, curl, date, dba, dom, enchant, ereg, exif, fileinfo, filter, ftp, gd, gettext, gmp, hash, iconv, imagick, imap, intl, json, libxml, mbstring, mcrypt, mhash, mssql, mysql, mysqli, mysqlnd, openssl, pcre, PDO, pdo_dblib, pdo_mysql, pdo_sqlite, Phar, posix, pspell, Reflection, session, SimpleXML, soap, sockets, SPL, sqlite3, standard, tidy, tokenizer, wddx, xml, xmlreader, xmlrpc, xmlwriter, xsl, Zend OPcache, zip, zlib

# PHP Settings
max_execution_time - 30
log_errors_max_len - 1024
max_file_uploads - 20
max_input_nesting_level - 64
max_input_time - 120
max_input_vars - 1000
memory_limit - 200M
post_max_size - 100M
sql.safe_mode - Off
upload_max_filesize - 100M
mssql.max_links - Unlimited
mssql.max_persistent - Unlimited
mssql.max_procs - Unlimited
mssql.textlimit - Server default
mysql.max_links - Unlimited
mysql.max_persistent - Unlimited
mysqli.max_links - Unlimited
mysqli.max_persistent - Unlimited
pcre.backtrack_limit - 1000000
pcre.recursion_limit - 100000
session.cache_limiter - <i>no value</i>
session.gc_maxlifetime - 7200
soap.wsdl_cache_limit - 5
opcache.max_accelerated_files - 4000
opcache.max_file_size - 0
opcache.max_wasted_percentage - 5

Browser User-Agent String

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36