We have a client that has just changed their servers and configuration. The user workstations are UserVMs: Windows 10 1909, Servers are 2019 Standard, and they are using ESXI Hosts: 7.0. Under this configuration, the client is running our application in a mapped drive configuration. Intermittently, a user will get an error 261 - Invalid/output or error 278 Invalid argument, usually in *winproc. The PxPlus level was 12.5 but I upgraded them to 16.2 with the same results.
I have gotten connected to the workstations that have experienced the issue, and can bash the software around and I won't get any error - things work as expected. I get out, and shortly after, while doing something reasonably mundane, the system hangs, and the user sees the stack level and the console prompt running down the screen when they press the Enter key.
The error 278 happened on this statement
0320 let _header_obj_type$=""; read (%scr_lib,key=scrn_k$+"0000",dom=8800)iol=8010; let _header_obj_type$=_obj_type$
but we can start a new session, and all works well.
The error 261 happened on this statement
14311 let %_wp_dir$=msg("_WP_DIR",lwd),%_wp_prefix$=msg("_WP_PREFIX",pfx)
I am sure that this is a network issue and I have not got the most confidence in our client's IT support - well intentioned as they are. Does anyone have any suggestions as to what may be done to resolve these issues?