FancyAlertViewController Crash on 9.8+

[loremattei]

This crash started appearing on 9.8 and it seems quite frequent on both 9.8 and 9.9.

0  WordPressUI                    0x101e92458 FancyAlertViewController.updateViewConfiguration() -> () (FancyAlertViewController.swift:219)
1  WordPressUI                    0x101e976f0 partial apply for FancyAlertViewController.(setViewConfiguration(FancyAlertViewController.Config, animated : Bool, alongside : (FancyAlertViewController) -> ()?) -> ()).(closure #1).(closure #1) (FancyAlertViewController.swift:150)
2  WordPressUI                    0x101e8396c _T0Ieg_IeyB_TR (UIView+Animations.swift)
3  UIKit                          0x18bcc73d4 +[UIView(UIViewAnimationWithBlocks) _setupAnimationWithDuration:delay:view:options:factory:animations:start:animationStateGenerator:completion:] + 608
4  UIKit                          0x18bcc7158 +[UIView(UIViewAnimationWithBlocks) animateWithDuration:delay:options:animations:completion:] + 108
5  WordPressUI                    0x101e90f30 FancyAlertViewController.(setViewConfiguration(FancyAlertViewController.Config, animated : Bool, alongside : (FancyAlertViewController) -> ()?) -> ()).(closure #1) (FancyAlertViewController.swift:146)
6  WordPressUI                    0x101e839a8 Bool (UIView+Animations.swift)
7  UIKit                          0x18bcc97ac -[UIViewAnimationBlockDelegate _didEndBlockAnimation:finished:context:] + 760
8  UIKit                          0x18bcc9134 -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 312
9  UIKit                          0x18bdb3048 -[UIViewAnimationState animationDidStop:finished:] + 296
10 QuartzCore                     0x186284774 CA::Layer::run_animation_callbacks(void*) + 284
11 libdispatch.dylib              0x1819f0ae4 _dispatch_client_callout + 16
12 libdispatch.dylib              0x1819fd6e0 _dispatch_main_queue_callback_4CF$VARIANT$mp + 1012
13 CoreFoundation                 0x1820a7070 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
14 CoreFoundation                 0x1820a4bc8 __CFRunLoopRun + 2272
15 CoreFoundation                 0x181fc4da8 CFRunLoopRunSpecific + 552
16 GraphicsServices               0x183fa7020 GSEventRunModal + 100
17 UIKit                          0x18bfa578c UIApplicationMain + 236
18 WordPress                      0x100807ea8 main (main.m:11)
19 libdyld.dylib                  0x181a55fc0 start + 4 

ref: 5af1117a11e9fa0aa5cfccc1