Unable to connect to my local DBs with clients after upgrade

I upgraded from 5.5.3 to 5.6.1 due to some issues I was facing while exporting/importing to WPEngine and thought to try the upgrade.

In due processes I also upgrade my Mysql Workbench to the latest version (8.0.20).

The issue that I am facing now is that I cannot connect to my local databases.In Workbench I am getting:

Your connection attempt failed for user ‘root’ to the MySQL server at localhost:NULL:
Wrong or unknown protocol

I then went to use SequelPro. Here the connection with the socket, seems to pass the test of connecting, but when I actually connect Sequel Pro crashes with this exception:

-[_NSInlineData isEqualToString:]: unrecognized selector sent to instance 0x60000032c320

(
0 CoreFoundation 0x00007fff394b9be7 __exceptionPreprocess + 250
1 libobjc.A.dylib 0x00007fff722915bf objc_exception_throw + 48
2 CoreFoundation 0x00007fff39538c77 -[NSObject(NSObject) __retain_OA] + 0
3 CoreFoundation 0x00007fff3941e44b forwarding + 1427
4 CoreFoundation 0x00007fff3941de28 _CF_forwarding_prep_0 + 120
5 Sequel Pro 0x00000001000587cd -[SPTablesList updateTables:] + 1338
6 Sequel Pro 0x000000010002f333 -[SPDatabaseDocument setConnection:] + 748
7 Foundation 0x00007fff3bb0f0dd __NSThreadPerformPerform + 204
8 CoreFoundation 0x00007fff3943dde2 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 17
9 CoreFoundation 0x00007fff3943dd81 __CFRunLoopDoSource0 + 103
10 CoreFoundation 0x00007fff3943db9b __CFRunLoopDoSources0 + 209
11 CoreFoundation 0x00007fff3943c8ca __CFRunLoopRun + 927
12 CoreFoundation 0x00007fff3943bece CFRunLoopRunSpecific + 462
13 HIToolbox 0x00007fff3806aabd RunCurrentEventLoopInMode + 292
14 HIToolbox 0x00007fff3806a7d5 ReceiveNextEventCommon + 584
15 HIToolbox 0x00007fff3806a579 _BlockUntilNextEventMatchingListInModeWithFilter + 64
16 AppKit 0x00007fff366b2829 _DPSNextEvent + 883
17 AppKit 0x00007fff366b1070 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352
18 AppKit 0x00007fff366a2d7e -[NSApplication run] + 658
19 AppKit 0x00007fff36674b86 NSApplicationMain + 777
20 Sequel Pro 0x0000000100002454 start + 52
)