Workflow Signature requests spinning CPU until server is saturated at 100% CPU

After upgrading to Patch 36 we find that when users action a Workflow Signature requests, the adonix.exe process spins one CPU up to 100%

This is occurring most days, the workaround at present is to do daily checking and manually killing off any spinning sessions through User Monitoring (PSADX)

The spinning adonix.exe processes are all when using email to respond to Workflow Signature request.  i.e. the spining CPU is related to the session which we can see in the Syracuse logs as launching a Workflow signature request
"GET /sdata/x3/erp/Seed_Std/$service/sign?chrono=3600125571-VAL&key=HSjst4hQZu&language=BRI&directory=X3APPLSEED"

The parameter SUP, WRK, WRKRMTMAC "Server: Workstation Workflow links" was set to "SyrServer:443" which is incorrect. This parameter should be left blank for v7+ anyway, but if it is defined, it must be pointing to an application server.

See online help at https://online-help.sagex3.com/erp/12/en-us/Content/V7DEV/administration-reference_parameter-wrkrmtmac.html  for more details about this parameter.