Heatmaps broken for session after 1.27 release
Author: notzCreated Jun 1, 2026Updated Aug 18, 2026
Labelsbug
Describe the issue Heatmap images don't get rendered if a session is selected that was created with 1.27. I don't get other error messages in the console. What's missing is this line:
TRIGGER:LOCATION_url:https://....
I see a lot of 404s on https://aaa/mobs/3825112163722848672/dom.mobe? – but this also occurs if the heatmaps get rendered.
On some pages I have this error in the console logs:
Unrecognized tp=13264, msg started at 8, pointer now at 10, buf length 63895
250 bytes before msg start:
81 2 2 0 226 149 181 141
250 bytes from msg start:
208 103 160 2 104 116 116 112 115 58 47 47 105 110 115 116 97 104 101 108 112 46 109 101 47 100 101 47 112 114 101 105 115 101 47 63 117 116 109 95 115 111 117 114 99 101 61 103 111 111 103 108 101 38 117 116 109 95 109 101 100 105 117 109 61 99 112 99 38 117 116 109 95 99 97 109 112 97 105 103 110 61 49 56 56 52 55 50 55 55 57 57 49 48 38 117 116 109 95 116 101 114 109 61 116 104 101 114 97 112 105 101 38 103 97 100 95 115 111 117 114 99 101 61 49 38 103 97 100 95 99 97 109 112 97 105 103 110 105 100 61 50 50 57 53 48 50 53 48 55 52 52 38 103 98 114 97 105 100 61 48 65 65 65 65 65 68 103 80 65 67 79 50 65 108 95 120 90 87 54 65 99 108 106 114 104 106 71 101 83 95 106 101 51 38 103 99 108 105 100 61 67 106 119 75 67 65 106 119 117 79 95 81 66 104 65 87 69 105 119 65 73 107 86 104 85 122 105 70 109 104 89 77 106 112 112 73 77 122 56 109 76 115 74 74 70 108 108 116 95
08:04:15.489Another issue I have is that I sometimes get a mobile screen on desktop and vice versa.
Steps to reproduce the issue
- Create a heatmap card
- Press regenerate the heatmap
- Sometimes it works and sometimes not, never for a site that was launched after 1.27 release
Expected behavior See the correct heatmap for selected device format.
Screenshots
OpenReplay Environment
- Frontend stack: Wordpress
- OpenReplay version: 1.27
- Tracker version: 18.0.6
- Plugins used: None
- Cloud provider: OVH
- System specs: Kubernetes
Additional context
Not working:
Working:
Source: openreplay/openreplay