yes, in mutli-site , if you want to use it in different subsites you will need dev license, but subsites are not more then 5 then business license is ok. as you already purchased pro, you only have to pay the different.
– wpdm-archive-page <-- already compatible with wpdm pro v4, should work fine
- wpdm-custom-fields <-- already compatible with wpdm pro v4, should work fine, but still doing some upgrade for wpdm pro v4
- wpdm-newsletter <-- compatible with v3.3.8, but we are already working on it to make it compatible with wpdm pro v4.
- wpdm-premium-packages <-- already compatible with wpdm pro v4, should work fine
- wp-formbuilder <-- already compatible with wpdm pro v4, should work fine
This compatibility issue happened as wpdm pro moved to custom post type from v4. So we are migrating all add-ons too.
sorry, got the issue, will be ok with next update, but if you want to know the fix, here it is,
1) open wpdm-all-downloads.php
2) go to line # 69, it is now there 'total' ► $total_files/$items,
3) replace it with 'total' ► ceil($total_files/$items),
@twomuch, sorry, I missed, migration add-on working ok for others, so need to check it in your site, please send temporary wp-admin login info to support@wpdownloadmanager.com
BTW, it is not a bug. and standard way is adjusting it from server, though 99.99% server has it enabled by default. Anyhow you can try editing code in /download-manager/wpdm-core.php on line 722
it could be because if your server, anyhow even if you keep it in default location, its secure and wpdm pro block http access to that dir using .httaccess
