If FlexiPDF is not running... If I double click on a PDF in Windows File Explorer, the PDF opens just fine, BUT...
If FlexiPDF is running and I try and open a first PDF or if a PDF is already loaded and I try and open a second PDF by double clicking a PDF file in Windows File Explorer, I get the following error...
"Cannot open PDF file "(Correct name of and path to the PDF file I'm trying to open)"
"File does not exist [CWD:C:\Program Files (x86)\Softmaker\FlexiPDF 2025]"
I've never had this problem before today. I think it might have something to do with Google Drive because If I copy a PDF out of my Google Drive folders on my SSD to say, the SSD root directory, I can open that PDF from Windows File Explorer regardless of whether FlexiPDF is open, has a PDF loaded, or not

Any ideas as to what is happening here?
Cheers