Pinta 1.6 installed on Linux Mint 19.3 crash after a couple of seconds

added consition.

double free or corruption (out)
Stacktrace:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) GLib.SList.g_free (intptr) <0x0005f>
  at GLib.ListBase.Empty () <0x0013c>
  at GLib.ListBase.Dispose (bool) <0x0000f>
  at GLib.ListBase.Finalize () <0x0001d>
  at (wrapper runtime-invoke) object.runtime_invoke_virtual_void__this__ (object,intptr,intptr,intptr) <0x00068>

Native stacktrace:

 /usr/bin/mono(+0xc8514) [0x56397e83f514]
 /lib/x86_64-linux-gnu/libpthread.so.0(+0x12890) [0x7fa40ffcc890]
 /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7) [0x7fa40f9efe97]
 /lib/x86_64-linux-gnu/libc.so.6(abort+0x141) [0x7fa40f9f1801]
 /lib/x86_64-linux-gnu/libc.so.6(+0x89897) [0x7fa40fa3a897]
 /lib/x86_64-linux-gnu/libc.so.6(+0x9090a) [0x7fa40fa4190a]
 /lib/x86_64-linux-gnu/libc.so.6(cfree+0x525) [0x7fa40fa48e75]
 [0x40f84900]

Debug info from gdb:

[New LWP 9035]
[New LWP 9036]
[New LWP 9038]
[New LWP 9039]
[New LWP 9091]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
__lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
95 ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: No such file or directory.
  Id Target Id Frame
* 1 Thread 0x7fa410b80780 (LWP 9032) "Main" __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
  2 Thread 0x7fa40efff700 (LWP 9035) "SGen worker" 0x00007fa40ffc79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56397ed32a08) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  3 Thread 0x7fa40f6d2700 (LWP 9036) "Finalizer" 0x00007fa40ffcc23a in __waitpid (pid=9117, stat_loc=0x7fa40f6d076c, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:30
  4 Thread 0x7fa3ff548700 (LWP 9038) "gmain" 0x00007fa40fac5bf9 in __GI___poll (fds=0x56397fddb860, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  5 Thread 0x7fa3fed47700 (LWP 9039) "gdbus" 0x00007fa40fac5bf9 in __GI___poll (fds=0x56397fdee0f0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  6 Thread 0x7fa3eb7fe700 (LWP 9091) "pool" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38

Thread 6 (Thread 0x7fa3eb7fe700 (LWP 9091)):
#0 0x00007fa40facc839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1 0x00007fa405c2d87a in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007fa405bba571 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007fa405bbab2c in g_async_queue_timeout_pop () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007fa405c0fc1e in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007fa405c0f175 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6 0x00007fa40ffc16db in start_thread (arg=0x7fa3eb7fe700) at pthread_create.c:463
#7 0x00007fa40fad288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fa3fed47700 (LWP 9039)):
#0 0x00007fa40fac5bf9 in __GI___poll (fds=0x56397fdee0f0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007fa405be75c9 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007fa405be7962 in g_main_loop_run ...