Shotcut crashes when moving blank filter box on macOS

Hi, I have used shotcut before without fault. Now after having finished editing my video I want to ad filters. I open the filter panel but its blank/black(see screenshot). As soon as I move the filter window or manipulate it in any way the program crashes. Below is part of the crash report. I have the current version of shotcut 19.12.31 and MacOSX Catalina. My video consists of one 1minute track, a 1 minute soundtrack and a second short soundtrack. the resolution of the clips are 1920x1080. I have a MacBookPro15 ,2 , BootROM 1037.80.53.0.0, 4 processors, Quad-Core Intel Core i7, 2.7 GHz, 16 GB, SMC. Help very much appreciated!

12%20am

Process: Shotcut [2301]
Path: /Applications/Shotcut 2.app/Contents/MacOS/Shotcut
Identifier: com.Meltytech.Shotcut
Version: 19.12 (19.12.31)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Shotcut [2301]
User ID: 503

Date/Time: 2020-02-09 20:45:50.723 +1100
OS Version: Mac OS X 10.15.3 (19D76)
Report Version: 12
Bridge OS Version: 4.2 (17P3050)
Anonymous UUID: 68437B5D-BF2E-2670-17BD-BE202F7391C3

Time Awake Since Boot: 1900 seconds

System Integrity Protection: enabled

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: EXC_I386_GPFLT
Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [2301]

This was already reported a few times and fixed for the next version 20.02 due in a week.
Read my comment here about how to dock the panel back into the main window:

thank you