-[EAGLContext presentRenderbuffer:] crash in iOS 14

We encountered an OpenGL related crash on ios14. It has nothing to do with the application background. The vast majority of crashes occurred on IOS 14 low-end devices, and it is not clear how to solve them.

The only possible clue is that the crash may have something to do with opening the WebView.

Monitor Type: Unix Signal Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x00000000 at 0x00000001c7517414 Crashed Thread: 0

Pthread id: 10322737
Thread 0 Crashed:
0   libsystem_kernel.dylib          __pthread_kill + 8
1   libsystem_pthread.dylib         pthread_kill + 272
2   libsystem_c.dylib               abort + 104
3   AppleMetalGLRenderer            GLDContextRec::flushContextInternal() + 852
4   GLEngine                        gliPresentViewES_Exec + 188
5   OpenGLES                        -[EAGLContext presentRenderbuffer:] + 76
6   myapp                           -[EJCanvasContextWebGLScreen present] (EJCanvasContextWebGLScreen.m:142)
7   QuartzCore                      CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 664
8   QuartzCore                      display_timer_callback(__CFMachPort*, void*, long, void*) + 280
9   CoreFoundation                  __CFMachPortPerform + 176
10  CoreFoundation                  __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 60
11  CoreFoundation                  __CFRunLoopDoSource1 + 596
12  CoreFoundation                  __CFRunLoopRun + 2360
13  CoreFoundation                  CFRunLoopRunSpecific + 600
14  GraphicsServices                GSEventRunModal + 164
15  UIKitCore                       -[UIApplication _run] + 1072
16  UIKitCore                       UIApplicationMain + 168
17  myapp                           main (main.m:36)
18  libdyld.dylib                   start + 4