Still not seeing Haste values on my character.
Instead I am greeted with errors when I go to the Stats tab in Settings:

5x ...tendedCharacterStats\Modules\Config\SpellSection.lua:53: attempt to index field 'hasteRating' (a nil value) [string "@ExtendedCharacterStats\Modules\Config\SpellSection.lua"]:53: in function member'
[string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:221: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:169>
[string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:1206: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:1121>
[string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:1652: in function FeedGroup' [string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:1577: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:1561> [string "=[C]"]: ? [string "@Atlas\Libs\AceGUI-3.0\AceGUI-3.0-41.lua"]:72: in function <Atlas\Libs\AceGUI-3.0\AceGUI-3.0.lua:70> [string "@Atlas\Libs\AceGUI-3.0\AceGUI-3.0-41.lua"]:306: in function Fire'
[string "@atlas\Libs\AceGUI-3.0-41\widgets\AceGUIContainer-TreeGroup.lua"]:512: in function SetSelected' [string "@Atlas\Libs\AceGUI-3.0-41\widgets\AceGUIContainer-TreeGroup.lua"]:189: in function <...ibs\AceGUI-3.0\widgets\AceGUIContainer-TreeGroup.lua:185>

2x ...tendedCharacterStats\Modules\Config\RangeSection.lua:66: attempt to index field 'hasteRating' (a nil value) [string "@ExtendedCharacterStats\Modules\Config\RangeSection.lua"]:66: in function member'
[string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:221: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:169>
[string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:1206: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:1121>
[string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:1652: in function FeedGroup' [string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:1577: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:1561> [string "=[C]"]: ? [string "@Atlas\Libs\AceGUI-3.0\AceGUI-3.0-41.lua"]:72: in function <Atlas\Libs\AceGUI-3.0\AceGUI-3.0.lua:70> [string "@Atlas\Libs\AceGUI-3.0\AceGUI-3.0-41.lua"]:306: in function Fire'
[string "@atlas\Libs\AceGUI-3.0-41\widgets\AceGUIContainer-TreeGroup.lua"]:512: in function SetSelected' [string "@Atlas\Libs\AceGUI-3.0-41\widgets\AceGUIContainer-TreeGroup.lua"]:189: in function <...ibs\AceGUI-3.0\widgets\AceGUIContainer-TreeGroup.lua:185>

3x ...tendedCharacterStats\Modules\Config\MeleeSection.lua:98: attempt to index field 'hasteRating' (a nil value) [string "@ExtendedCharacterStats\Modules\Config\MeleeSection.lua"]:98: in function member'
[string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:221: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:169>
[string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:1206: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:1121>
[string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:1652: in function FeedGroup' [string "@Quartz\libs\AceConfig-3.0-3\AceConfigDialog-3.0\AceConfigDialog-3.0-82.lua"]:1577: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:1561> [string "=[C]"]: ? [string "@Atlas\Libs\AceGUI-3.0\AceGUI-3.0-41.lua"]:72: in function <Atlas\Libs\AceGUI-3.0\AceGUI-3.0.lua:70> [string "@Atlas\Libs\AceGUI-3.0\AceGUI-3.0-41.lua"]:306: in function Fire'
[string "@atlas\Libs\AceGUI-3.0-41\widgets\AceGUIContainer-TreeGroup.lua"]:512: in function SetSelected' [string "@Atlas\Libs\AceGUI-3.0-41\widgets\AceGUIContainer-TreeGroup.lua"]:189: in function <...ibs\AceGUI-3.0\widgets\AceGUIContainer-TreeGroup.lua:185>

Hey @Trouler this is on TBC or SoM? 🤔

You can try the following:

/run ExtendedCharacterStats.general.profileVersion = 0 and then do a /reload? This will reset ECS

It's TBC. Resetting seem to have fixed it. Thanks!
I tried just reinstalling it through Wowup yesterday, but I guess a reinstall doesn't clear settings.