Hello Karen
I Have this Problem in version 2.4 a I copy my solution, Now I never have the DLL error again, I Hope it works for you. I copy my post at this time
"I had this problem for 3 months but I solved it as I describe in the post that I transcribe here,
I have two Workstations with two Pro licenses in each one, both with the same system and configuration, but when updating to version 2.4 in one of them the Dll error problem appeared.
It seems that when D5 is loaded or updated, this file is deleted by the antivirus or the firewall, or I don’t know what, but not always.
For more than 2 months I tried all the solutions on the forum except the remote intervention of my PC by the D5 support team.
I solved it by replacing the incorrectly loaded Dll manually in Windows System 32.
There are several solutions on the internet on how to do it, many of them did not let me replace the file because the permissions did not allow it even though I had allowed them.
In order not to harm the equipment, my IT consultant did it to configure the system for me, and he could only do it by renaming the Dll file with a different name, then the permissions worked.
This is the forum link for this problem, there is a solution out there that works better for you than it does for me.
https://forum.d5render.com/t/got-notification-of-launch-failure-might-be-caused-by-system-dlls-missing-try-to-repair-it-automatically-or-stop- loading-at-0/3159
And if not, here you have instructions on how to change the DLL manually, look for the one that is most suitable for your system.
https://www.youtube.com/results?search_query=dll+file+problem+fix
Greetings
Sketchup dll error SketchUp"