In BYOB Agility Nude Skin Content - Typical Header Settings and Typical Footer Settings there is a problem.  I have not tried any other Skin Content Settings so do not know if the problem is more wide spread.

I have tried to use the Top Header Bar Options and various other options for the footer that also give the same problem.  I have tried to rectify it including re-booting my desktop computer and separately closing and re-launching the Wordpress editor but nothing works.

I am setting up a new website and the problem starts when I select any of the Settings such as Top Header Bar.  The drop down menus show the options but flash on and off quickly so that a selection is very hit and miss to get right.  Once a selection is achieved the browser tab for that screen and the screen image continually flashes on and off and simply shows the same screen image without being able to make progress from that point.  It is that the browser tab appears never to complete the action and simply tries to cycle though the process.

About Your Agility Installation
===========================
Thesis Version: 2.8.5
Current Skin Name: BYOB Agility Nude
Current Skin Version: 3.2.2.0
WordPress Version: 5.1.1

Agility Design Options
===========================
Array
(
[primary_font_family] => Array
(
[font_family] => georgia
)

[main_menu] => Array
(
[submenu_width] => 250
[font-size] => 18
)

[feature_box_area_background] => Array
(
[add_backgrpound_image] => Array
(
[show_image] => 1
)

[background-position] => center center
[background-attachment] => fixed
[background-repeat] => no-repeat
)

[feature_box_area_page_background] => Array
(
[customize_padding] => Array
(
[show_padding] => 1
)

[padding-bottom] => 26
)

[desktop_width] => Array
(
[width] => 1032
)

[c_base] => ccab68
[c_bg_dark] => 745b27
[c_bg_med_dark] => 9a7834
[c_bg_med] => ccab68
[c_bg_light] => e6d5b4
[c_bg_very_light] => ffffff
[c_cont_bg_dark] => 2d7685
[c_cont_bg_med_dark] => b2a026
[c_cont_bg_med] => 5485ab
[c_cont_bg_light] => aabce6
[c_cont_bg_very_light] => dedaf3
[cg_black] => 000000
[cg_darkest] => 171717
[cg_very_dark] => 363636
[cg_dark] => 555555
[cg_med_dark] => 707070
[cg_med] => 8A8A8A
[cg_med_light] => A9A9A9
[cg_light] => C0C0C0
[cg_very_light] => D3D3D3
[cg_ligtest] => FAFAFA
[cg_white] => FFFFFF
[content_width] => Array
(
[width] => two-thirds
)

[sidebar_width] => Array
(
[width] => one-third
)

[social_icon_style_1] => Array
(
[color] => red
)

)

Old Agility Design Options
===========================

Misc Agility Options
===========================
Options Scheme - new
Have the old options been converted? - 1

Thesis & Current Skin
===========================
Thesis Version: 2.8.5
Skin Name: BYOB Agility Nude
Skin Version: 3.2.2.0
Skin CSS: YES → 97.6kB on 04/26/2019 at 11:34:34
Skin Custom CSS: NO
Skin Custom PHP: YES → 0.4kB on 04/25/2019 at 17:36:15

Thesis Filesystem
===========================
wp-content/thesis: YES
wp-content/thesis/skins: YES
wp-content/thesis/boxes: YES
wp-content/thesis/master.php: YES → 0.1kB on 04/24/2019 at 16:56:15

Thesis Skins and Boxes
===========================
Installed Skins: BYOB Agility Nude, Classic Responsive
Installed Boxes:
Active Boxes:

WordPress
===========================
WordPress Version: 5.1.1
Filesystem Method: direct
Using Multisite: NO
Active Plugins: Akismet Anti-Spam, Classic Editor, Jetpack by WordPress.com, Regenerate Thumbnails, Thrive Product Manager, Thrive Quiz Builder, Thrive Architect

PHP
===========================
Version: 5.6.40
cURL: YES
Max Upload (according to WP): 64 MB
Memory Limit (ini): 1024M
Memory Limit (usage): 76 MB
Memory Limit (WP): 40M

Server/Database
===========================
Site URL: https://makelifegreat.org
Server Software: Apache
Options Collation: utf8mb4_unicode_ci
MySQL Version: 5.5.5-10.1.38-MariaDB
PHP Handler: apache2handler

Browser
===========================
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0

Plesae advise.  Thank you, Peter Kershaw.