I just upgraded amr-ical-events-list from 4.0.?? to 4.1, and discovered a problem with the settings pages in amr-ical-events-list:
wp-admin/admin.php?page=manage_amr_ical cut off after the "none" in the "Advanced" section, and wp-admin/admin.php?page=manage_event_listing&list=[any number] cut off after the text box next to "Time" in the "Define date and time formats:" section.
By turning on the WP_DEBUG option, I got it to tell me that there was "Fatal error: Call to undefined function amr_format_date() in [...]/wp-content/plugins/amr-ical-events-list/includes/amr-ical-list-admin.php on line 1408". Sure enough, I found lots of calls to amr_format_date, but no function definition in any file anywhere under plugins/amr-ical-events-list.
I re-downloaded 4.0.30, and this function was defined there in includes/amr-ical-pretty-print.php, but it's not in the 4.1 version of that file. When I copied the function definition into the 4.1 version, I got a similar error about amr_wp_format_date(), so I went ahead and copied the whole 4.0.30 amr-ical-pretty-print.php file over the 4.1 one. I'm now able to see and edit the rest of the settings, but I don't know what else I may have messed up down the road.