Just to clarify instead of turning disable global cache off, you enabled it yes?
I remember once, the Lead architect of MODX said they meant to implement that setting but something about it never happening.
So, try turn off resource cache per resource?
TinymceWrapper: Complete back/frontend content solution.
Harden your MODX site by
passwording your three main folders:
core, manager, connectors and renaming your
assets (thank me later!)
5 ways to sniff / hack your own sites; even with renamed/hidden folders, burst them all up, to see how secure you are not.
One workaround would be to use
Cachemaster. You'd still have to save the pages in the Manager, but with CacheMaster, only the cache for the page you save will be cleared rather than the whole cache.
Be careful to check to see if loading the page in the Manager shows the new changes (I'm pretty sure it will). If it doesn't, the changes will be wiped out when you save the resource.