that far that i know the icon topic has a fix.
that far that i know the "type prefix" topic has no fix.

i got told that Oleg is currently not in state for doing anything for Jenkins topics - with an open date when he might be able to return.
there is the word that role-strategy plugin got adopted - but as of now i don't know who is the new adopter. web page provided data does not yet indicate such a change.

the subject here is only happening in combination with matrix-auth plugin 3.x - using latest 2.x versions will eliminate it.
current role-strategy plugin is only offering full support when used with matrix-auth 2.x - the GUI results shown in the above screenshots will be possible in a similar with present latest plugin versions.
the solution is supposed to need some changes to the role-strategy plugin. (i am not familiar with the internals and its real root cause since i have not dived into these plugin myself.)

Looking at the code this is only a UI problem and should not have any impact on functionality of the plugin.

The only thing rolestategy uses from matrix auth plugin is the function doCheckName from the descriptor of GlobalMatrixAuthorizationStrategy.

So I copied the code from version 2.6.11 of matrix-auth to rolestrategy and the issue is gone and everything still compiles and works as before.