Reports are not being shows for some hosts foreman 1.16.2

Hello,
We have ~5 hosts reports from which are not being shown in foreman, even though logs clearly indicate reports are being imported from puppet masters.

2018-12-04 17:21:01 4aabddc3 [app] [I] Imported report for host.example.com in 9.36 seconds, status refreshed in 0.05 seconds
2018-12-04 17:21:21 e94bd542 [app] [I] Imported report for host.example.com in 1.45 seconds, status refreshed in 0.03 seconds
2018-12-04 17:21:54 d8671af2 [app] [I] Imported report for host.example.com in 0.82 seconds, status refreshed in 0.02 seconds
2018-12-04 17:22:09 1aa998fe [app] [I] Imported report for host.example.com in 0.74 seconds, status refreshed in 0.02 seconds
2018-12-04 17:25:40 2c2720a7 [app] [I] Imported report for host.example.com in 0.73 seconds, status refreshed in 0.03 seconds
2018-12-04 17:27:10 fdfb5de7 [app] [I] Imported report for host.example.com in 0.11 seconds, status refreshed in 0.02 seconds

Is there anything can be done to debug this?

Thanks

Facts are empty too

Is the host still In build mode? Cancel the build. We see this from time to time when the build complete call to foreman fails.