This issue just started yesterday for me and I have tried everything. I edit my video like normal, do my basic color correction and go to export. Even in the preview, everything looks perfect, the colors are exactly how I want them. I export like normal- H.264, match source adaptive medium or high bitrate but when it exports it overexposes and messes with the color. Pics attached. I even watched the exported video on my phone and it's all orange. Nothing has changed about how I record. The only thing that changed is Premiere Pro updated for me recently.
Can you try changing HDR Graphics White (Nits) from 203 to 300?
Just tried it, still giving me an orange huge after export.
Might want to watch this video:
On a side note: if you are in a non-HDR environment Nits will have no effect.
As Ann's links will tell you, you have probably HLG media there ... an HDR format. To use that on an SDR standard Rec.709 timeline you need to tell Premiere which color space to use, as it will use the clip's color space until you tell it to use Rec.709 to match the sequence.
So ... go to your affected clips in the bin, select one or all ... right-click/Modify/Interpret Footage, and set the Override option to Rec.709.