Graphic exports failing from Gene Signature tab

[jwtobias]

With version 1.1.6 of ShinyCellPlus, I am unable to export pdf or png graphics from the Gene Signature tab. This is the error I see in the logs:

[2025-09-28T11:40:47.240] [INFO] shiny-server - [/srv/shiny-server/RWJLv04:13772] Warning: Error in : cannot open file 'Rplots.pdf'
[2025-09-28T11:40:47.243] [INFO] shiny-server - [/srv/shiny-server/RWJLv04:13772] 1: runApp
Warning: Error in : cannot open file 'Rplots.pdf'
1: runApp

I am able to export graphics from the other tabs.