My phone (HTC One Mini 2) displays INVALID_VER_INFO for RADIO and OpenDSP, too. But I found out that, when i boot into bootloader with no SD-card inserted, it says RADIO-1.101.1102.17.0506 and OpenDSP-v28.2.2.00546.0331. As soon as I boot into bootloader with SD-card inserted, INVALID_VER_INFO comes back.
I noticed this bug only after I had replaced the recovery with TWRP 2.7. So I can't tell exactly if this bug happened by updating OTA or by installing TWRP 2.7.
Besides that my phone is running perfectly, so there's no need to worry about it.