Adding picutes/Thumbnails from desktop issue

Help please...

When Adding pictures/Thumbnails from desktop Mind manger gives the following error and huts down (evened after reinstall)

Click on image>Thumbnail> = "attempted to access an unnamed file past its end"

App closes

I am using......

Product: MindManager (64-bit)
Version: 21.1.231
Mode: Normal
User Name: rumblebee44@gmail.com
Mindjet ID: none
OS: Windows 10 Pro 64-bit version 6.3.22000
Tablet: supported; disabled
Multitouch: disabled
Internet Admin Flag: internet enabled
Add-Ins:
Database Linker (disabled)
Microsoft Excel Linker (enabled)
Microsoft Outlook Map Parts (enabled)
Microsoft Project Import and Export (enabled)
Smart Map Parts (enabled)
Sort Topics (enabled)
Save as Web Pages (disabled)
MPX Import (disabled)
Browser (enabled)
Analytic Views AddIn (disabled)
Brainstorming AddIn (disabled)
Excel AddIn (enabled)
FreeMind Import (enabled)
Gantt Pro (enabled)
Export HTML5 Maps (enabled)
OPML Import and Export (enabled)
Microsoft SharePoint Linker (enabled)
Word AddIn (enabled)
XMind Import (enabled)
File Explorer (enabled)
Internet Explorer Version: 11.1.22000.0
Default Browser: Chrome
Microsoft Office Applications:
Word 16 64-bit
Excel 16 64-bit
Outlook 16 64-bit
PowerPoint 16 64-bit