Unload the DLL plugin show error

Delphi 10.4.1
Hydra -
Host is VCL
Plugin DLL is Fmx

when I unload the dll and quit the application show this error.

it show a exception. It seems when I go into a form contains devexpress controls and then , it trigger this error
but this error wont have for delphi 10.3.3 and hydra 6.2.101.

Please advise


we already had this error (External exception 87A) in 10.3 Rio: Hydra RTM: Known issues for Delphi 10.3 Rio. Seems they have fixed it in 10.3.1

possible workaround:

  • try to build your host and plugins with the Hydra_FMX_D27 run-time package, i.e. add Hydra_FMX_D27 package to VCL host. it may solve this error.