fixed the actual root of #32

[hatsumatsu]

Turns out #32 was caused by having a capability check in the function that registered the field, so the field is not registered for non-admin users:

acf-vimeo-pro-data/admin-settings.php

Line 12 in 6ed6769

if (!current_user_can('administrator') || !function_exists('acf_add_options_page') || !function_exists('acf_add_local_field_group')) {

I think it's not necessary there and could rather be tackled in the capabilites field of acf_add_options_sub_page().

Got the hint in
https://support.advancedcustomfields.com/forums/topic/get_field-field-option-return-null-for-non-admin-users/#post-150078

Works fine in my tests.