The way you’re configuring VLANs (one bridge per VLAN) is old school. While it might be OK for CCR (because it doesn’t have any hardware dedicated to switching) it’s definitely a no-no for CRS (which is capable of doing VLANs in switching hardware if configured properly).
I suggest you to read through this fine tutorial. The way VLANs are configured there is the proper way of doing it on CRS3xx and it’s also a good way of doing it on CCR.
One reason to do it like that also on CCR is that IMHO it’s much easier to read and understand the config.