Crash after export of WAV/mp3

Hi, veteran user here. After updating to 3.6.3, Audacity crashes after exporting a project to WAV or mp3 (mp3 always, WAV - occasionly). OS is Windows 10, fully patched.
Here’s the crash report. Can’t paste it in full here - I’ll send it over email if needed.
Ran

Operating system: Windows NT
10.0.19045 4894
CPU: amd64
family 23 model 24 stepping 1
8 CPUs

GPU: UNKNOWN

Crash reason: EXCEPTION_ACCESS_VIOLATION_READ
Crash address: 0x6af
Process uptime: 2359 seconds

Thread 0 (crashed)
0 wxbase313u_vc_x64_custom.dll + 0x41da0
rax = 0x00007ffd302b6068 rdx = 0x00000000000006af
rcx = 0x000001242111b5f0 rbx = 0x00000124210b45f0
rsi = 0x00000124210b4550 rdi = 0x00000124210b45f8
rbp = 0x000001242103c3b0 rsp = 0x000000200bd6cc78
r8 = 0x0000000000000000 r9 = 0x000000200bd6ca01
r10 = 0x0000000000008000 r11 = 0x000000200bd6cc50
r12 = 0x00000124210793e0 r13 = 0x0000000000000020
r14 = 0x000001241eb34300 r15 = 0x000001241eb34300
rip = 0x00007ffd300c1da0
Found by: given as instruction pointer in context

Stack contents:
 000000200bd6cc78 15 99 8b 6e fd 7f 00 00                          ..‹ný...        
Possible instruction pointers:

1 lib-viewport.dll + 0x9915
rax = 0x00007ffd302b6068 rdx = 0x00000000000006af
rcx = 0x000001242111b5f0 rbx = 0x00000124210b45f0
rsi = 0x00000124210b4550 rdi = 0x00000124210b45f8
rbp = 0x000001242103c3b0 rsp = 0x000000200bd6cc80
r8 = 0x0000000000000000 r9 = 0x000000200bd6ca01
r10 = 0x0000000000008000 r11 = 0x000000200bd6cc50
r12 = 0x00000124210793e0 r13 = 0x0000000000000020
r14 = 0x000001241eb34300 r15 = 0x000001241eb34300
rip = 0x00007ffd6e8b9915
Found by: simulating a return from leaf function