Gday Damian, SRM model is PM6, so possibly 6-8 years old. Works with other platforms, ie Zwift, Rouvy, FulGaz, etc. Has a similar problem with Road Grand Tours, so it seems these newer platforms may not be as accommodating, equipment-wise.
I’d be interested to know whether the new SRM equipment, either crank spider, or pedals work here?
My Power2Max PMs work fine.