RF Remote too sensitive on Krypton

Have been running Kodi 16 (Openelec 7.0.1) without any issues for a long time. Tried upgrading to Kodi 17 (with both Openelec 8.0.2 & 8.0.4), but remote buttons are way to sensitive, a simple click acts often as 2-3 clicks.

Any ideas/suggestions?

Not sure if this is an Openelec or Kodi issue, but posted same question on both forums.

My setup:

Remote: Universal Remote Control MX-780
MRF-350 RF to IR Base station (minimum output level)
RFX-250 RF Antenna

Thanks in advance.