Issues with background maps and certain GCS

Hello,

I am trying to use 'background maps' with EPSG:2019 MTM Zone 10 projection. The aerial map wont display.

However if i change to EPSG:3161 the aerial map displays without issues.

Does the background map function work only with specific GCS?

Thanks,

Microstation CE Update 14 Version 10.14.02.01